[Code of Federal Regulations]
[Title 29, Volume 6]
[Revised as of July 1, 2003]
From the U.S. Government Printing Office via GPO Access
[CITE: 29CFR1910.1200]

[Page 461-483]
 
                             TITLE 29--LABOR
 
CHAPTER XVII--OCCUPATIONAL SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT 
                                OF LABOR
 
PART 1910--OCCUPATIONAL SAFETY AND HEALTH STANDARDS (CONTINUED)--Table of Contents
 
                Subpart Z--Toxic and Hazardous Substances
 
Sec. 1910.1200  Hazard communication.

    (a) Purpose. (1) The purpose of this section is to ensure that the 
hazards of all chemicals produced or imported are evaluated, and that 
information concerning their hazards is transmitted to employers and 
employees. This transmittal of information is to be accomplished by 
means of comprehensive hazard communication programs, which are to 
include container labeling and other forms of warning, material safety 
data sheets and employee training.
    (2) This occupational safety and health standard is intended to 
address comprehensively the issue of evaluating the potential hazards of 
chemicals, and communicating information concerning hazards and 
appropriate protective measures to employees, and to preempt any legal 
requirements of a state, or political subdivision of a state, pertaining 
to this subject. Evaluating the potential hazards of chemicals, and 
communicating information concerning hazards and appropriate protective 
measures to employees, may include, for example, but is not limited to, 
provisions for: developing and maintaining a written hazard 
communication program for the workplace, including lists of hazardous 
chemicals present; labeling of containers of chemicals in the workplace, 
as well as of containers of chemicals being shipped to other workplaces; 
preparation and distribution of material safety data sheets to employees 
and downstream employers; and development and implementation of employee 
training programs regarding hazards of chemicals and protective 
measures. Under section 18 of the Act, no state or political subdivision 
of a state may adopt or enforce, through any court or agency, any 
requirement relating to the issue addressed by this Federal standard, 
except pursuant to a Federally-approved state plan.
    (b) Scope and application. (1) This section requires chemical 
manufacturers or importers to assess the hazards of chemicals which they 
produce or import, and all employers to provide information to their 
employees about the hazardous chemicals to which they are exposed, by 
means of a hazard communication program, labels and other forms of 
warning, material safety data sheets, and information and training. In 
addition, this section requires distributors to transmit the required 
information to employers. (Employers who do not produce or import 
chemicals need only focus on those parts of this rule that deal with 
establishing a workplace program and communicating information to their 
workers. Appendix E of this section is a general guide for such 
employers to help them determine their compliance obligations under the 
rule.)
    (2) This section applies to any chemical which is known to be 
present in the workplace in such a manner that employees may be exposed 
under normal conditions of use or in a foreseeable emergency.
    (3) This section applies to laboratories only as follows:
    (i) Employers shall ensure that labels on incoming containers of 
hazardous chemicals are not removed or defaced;
    (ii) Employers shall maintain any material safety data sheets that 
are received with incoming shipments of hazardous chemicals, and ensure 
that they are readily accessible during each workshift to laboratory 
employees when they are in their work areas;
    (iii) Employers shall ensure that laboratory employees are provided 
information and training in accordance with paragraph (h) of this 
section, except for the location and availability of the written hazard 
communication program under paragraph (h)(2)(iii) of this section; and,

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    (iv) Laboratory employers that ship hazardous chemicals are 
considered to be either a chemical manufacturer or a distributor under 
this rule, and thus must ensure that any containers of hazardous 
chemicals leaving the laboratory are labeled in accordance with 
paragraph (f)(1) of this section, and that a material safety data sheet 
is provided to distributors and other employers in accordance with 
paragraphs (g)(6) and (g)(7) of this section.
    (4) In work operations where employees only handle chemicals in 
sealed containers which are not opened under normal conditions of use 
(such as are found in marine cargo handling, warehousing, or retail 
sales), this section applies to these operations only as follows:
    (i) Employers shall ensure that labels on incoming containers of 
hazardous chemicals are not removed or defaced;
    (ii) Employers shall maintain copies of any material safety data 
sheets that are received with incoming shipments of the sealed 
containers of hazardous chemicals, shall obtain a material safety data 
sheet as soon as possible for sealed containers of hazardous chemicals 
received without a material safety data sheet if an employee requests 
the material safety data sheet, and shall ensure that the material 
safety data sheets are readily accessible during each work shift to 
employees when they are in their work area(s); and,
    (iii) Employers shall ensure that employees are provided with 
information and training in accordance with paragraph (h) of this 
section (except for the location and availability of the written hazard 
communication program under paragraph (h)(2)(iii) of this section), to 
the extent necessary to protect them in the event of a spill or leak of 
a hazardous chemical from a sealed container.
    (5) This section does not require labeling of the following 
chemicals:
    (i) Any pesticide as such term is defined in the Federal 
Insecticide, Fungicide, and Rodenticide Act (7 U.S.C. 136 et seq.), when 
subject to the labeling requirements of that Act and labeling 
regulations issued under that Act by the Environmental Protection 
Agency;
    (ii) Any chemical substance or mixture as such terms are defined in 
the Toxic Substances Control Act (15 U.S.C. 2601 et seq.), when subject 
to the labeling requirements of that Act and labeling regulations issued 
under that Act by the Environmental Protection Agency.
    (iii) Any food, food additive, color additive, drug, cosmetic, or 
medical or veterinary device or product, including materials intended 
for use as ingredients in such products (e.g. flavors and fragrances), 
as such terms are defined in the Federal Food, Drug, and Cosmetic Act 
(21 U.S.C. 301 et seq.) or the Virus-Serum-Toxin Act of 1913 (21 U.S.C. 
151 et seq.), and regulations issued under those Acts, when they are 
subject to the labeling requirements under those Acts by either the Food 
and Drug Administration or the Department of Agriculture;
    (iv) Any distilled spirits (beverage alcohols), wine, or malt 
beverage intended for nonindustrial use, as such terms are defined in 
the Federal Alcohol Administration Act (27 U.S.C. 201 et seq.) and 
regulations issued under that Act, when subject to the labeling 
requirements of that Act and labeling regulations issued under that Act 
by the Bureau of Alcohol, Tobacco, and Firearms;
    (v) Any consumer product or hazardous substance as those terms are 
defined in the Consumer Product Safety Act (15 U.S.C. 2051 et seq.) and 
Federal Hazardous Substances Act (15 U.S.C. 1261 et seq.) respectively, 
when subject to a consumer product safety standard or labeling 
requirement of those Acts, or regulations issued under those Acts by the 
Consumer Product Safety Commission; and,
    (vi) Agricultural or vegetable seed treated with pesticides and 
labeled in accordance with the Federal Seed Act (7 U.S.C. 1551 et seq.) 
and the labeling regulations issued under that Act by the Department of 
Agriculture.
    (6) This section does not apply to: (i) Any hazardous waste as such 
term is defined by the Solid Waste Disposal Act, as amended by the 
Resource Conservation and Recovery Act of 1976, as amended (42 U.S.C. 
6901 et seq.), when subject to regulations issued under that Act by the 
Environmental Protection Agency;

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    (ii) Any hazardous substance as such term is defined by the 
Comprehensive Environmental Response, Compensation and Liability ACT 
(CERCLA) (42 U.S.C. 9601 et seq.) when the hazardous substance is the 
focus of remedial or removal action being conducted under CERCLA in 
accordance with Environmental Protection Agency regulations;
    (iii) Tobacco or tobacco products;
    (iv) Wood or wood products, including lumber which will not be 
processed, where the chemical manufacturer or importer can establish 
that the only hazard they pose to employees is the potential for 
flammability or combustibility (wood or wood products which have been 
treated with a hazardous chemical covered by this standard, and wood 
which may be subsequently sawed or cut, generating dust, are not 
exempted);
    (v) Articles (as that term is defined in paragraph (c) of this 
section);
    (vi) Food or alcoholic beverages which are sold, used, or prepared 
in a retail establishment (such as a grocery store, restaurant, or 
drinking place), and foods intended for personal consumption by 
employees while in the workplace;
    (vii) Any drug, as that term is defined in the Federal Food, Drug, 
and Cosmetic Act (21 U.S.C. 301 et seq.), when it is in solid, final 
form for direct administration to the patient (e.g., tablets or pills); 
drugs which are packaged by the chemical manufacturer for sale to 
consumers in a retail establishment (e.g., over-the-counter drugs); and 
drugs intended for personal consumption by employees while in the 
workplace (e.g., first aid supplies);
    (viii) Cosmetics which are packaged for sale to consumers in a 
retail establishment, and cosmetics intended for personal consumption by 
employees while in the workplace;
    (ix) Any consumer product or hazardous substance, as those terms are 
defined in the Consumer Product Safety Act (15 U.S.C. 2051 et seq.) and 
Federal Hazardous Substances Act (15 U.S.C. 1261 et seq.) respectively, 
where the employer can show that it is used in the workplace for the 
purpose intended by the chemical manufacturer or importer of the 
product, and the use results in a duration and frequency of exposure 
which is not greater than the range of exposures that could reasonably 
be experienced by consumers when used for the purpose intended;
    (x) Nuisance particulates where the chemical manufacturer or 
importer can establish that they do not pose any physical or health 
hazard covered under this section;
    (xi) Ionizing and nonionizing radiation; and,
    (xii) Biological hazards.
    (c) Definitions.
    Article means a manufactured item other than a fluid or particle: 
(i) which is formed to a specific shape or design during manufacture; 
(ii) which has end use function(s) dependent in whole or in part upon 
its shape or design during end use; and (iii) which under normal 
conditions of use does not release more than very small quantities, 
e.g., minute or trace amounts of a hazardous chemical (as determined 
under paragraph (d) of this section), and does not pose a physical 
hazard or health risk to employees.
    Assistant Secretary means the Assistant Secretary of Labor for 
Occupational Safety and Health, U.S. Department of Labor, or designee.
    Chemical means any element, chemical compound or mixture of elements 
and/or compounds.
    Chemical manufacturer means an employer with a workplace where 
chemical(s) are produced for use or distribution.
    Chemical name means the scientific designation of a chemical in 
accordance with the nomenclature system developed by the International 
Union of Pure and Applied Chemistry (IUPAC) or the Chemical Abstracts 
Service (CAS) rules of nomenclature, or a name which will clearly 
identify the chemical for the purpose of conducting a hazard evaluation.
    Combustible liquid means any liquid having a flashpoint at or above 
100  deg.F (37.8  deg.C), but below 200  deg.F (93.3  deg.C), except any 
mixture having components with flashpoints of 200  deg.F (93.3  deg.C), 
or higher, the total volume of which make up 99 percent or more of the 
total volume of the mixture.
    Commercial account means an arrangement whereby a retail distributor

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sells hazardous chemicals to an employer, generally in large quantities 
over time and/or at costs that are below the regular retail price.
    Common name means any designation or identification such as code 
name, code number, trade name, brand name or generic name used to 
identify a chemical other than by its chemical name.
    Compressed gas means:
    (i) A gas or mixture of gases having, in a container, an absolute 
pressure exceeding 40 psi at 70  deg.F (21.1  deg.C); or
    (ii) A gas or mixture of gases having, in a container, an absolute 
pressure exceeding 104 psi at 130  deg.F (54.4  deg.C) regardless of the 
pressure at 70  deg.F (21.1  deg.C); or
    (iii) A liquid having a vapor pressure exceeding 40 psi at 100 
deg.F (37.8  deg.C) as determined by ASTM D-323-72.
    Container means any bag, barrel, bottle, box, can, cylinder, drum, 
reaction vessel, storage tank, or the like that contains a hazardous 
chemical. For purposes of this section, pipes or piping systems, and 
engines, fuel tanks, or other operating systems in a vehicle, are not 
considered to be containers.
    Designated representative means any individual or organization to 
whom an employee gives written authorization to exercise such employee's 
rights under this section. A recognized or certified collective 
bargaining agent shall be treated automatically as a designated 
representative without regard to written employee authorization.
    Director means the Director, National Institute for Occupational 
Safety and Health, U.S. Department of Health and Human Services, or 
designee.
    Distributor means a business, other than a chemical manufacturer or 
importer, which supplies hazardous chemicals to other distributors or to 
employers.
    Employee means a worker who may be exposed to hazardous chemicals 
under normal operating conditions or in foreseeable emergencies. Workers 
such as office workers or bank tellers who encounter hazardous chemicals 
only in non-routine, isolated instances are not covered.
    Employer means a person engaged in a business where chemicals are 
either used, distributed, or are produced for use or distribution, 
including a contractor or subcontractor.
    Explosive means a chemical that causes a sudden, almost 
instantaneous release of pressure, gas, and heat when subjected to 
sudden shock, pressure, or high temperature.
    Exposure or exposed means that an employee is subjected in the 
course of employment to a chemical that is a physical or health hazard, 
and includes potential (e.g. accidental or possible) exposure. 
``Subjected'' in terms of health hazards includes any route of entry 
(e.g. inhalation, ingestion, skin contact or absorption.)
    Flammable means a chemical that falls into one of the following 
categories:
    (i) Aerosol, flammable means an aerosol that, when tested by the 
method described in 16 CFR 1500.45, yields a flame projection exceeding 
18 inches at full valve opening, or a flashback (a flame extending back 
to the valve) at any degree of valve opening;
    (ii) Gas, flammable means: (A) A gas that, at ambient temperature 
and pressure, forms a flammable mixture with air at a concentration of 
thirteen (13) percent by volume or less; or
    (B) A gas that, at ambient temperature and pressure, forms a range 
of flammable mixtures with air wider than twelve (12) percent by volume, 
regardless of the lower limit;
    (iii) Liquid, flammable means any liquid having a flashpoint below 
100  deg.F (37.8  deg.C), except any mixture having components with 
flashpoints of 100  deg.F (37.8  deg.C) or higher, the total of which 
make up 99 percent or more of the total volume of the mixture.
    (iv) Solid, flammable means a solid, other than a blasting agent or 
explosive as defined in Sec. 1910.109(a), that is liable to cause fire 
through friction, absorption of moisture, spontaneous chemical change, 
or retained heat from manufacturing or processing, or which can be 
ignited readily and when ignited burns so vigorously and persistently as 
to create a serious hazard. A chemical shall be considered to be a 
flammable solid if, when tested by the method described in 16 CFR 
1500.44, it ignites and burns with a self-sustained flame at a rate 
greater than one-tenth of an inch per second along its major axis.

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    Flashpoint means the minimum temperature at which a liquid gives off 
a vapor in sufficient concentration to ignite when tested as follows:
    (i) Tagliabue Closed Tester (See American National Standard Method 
of Test for Flash Point by Tag Closed Tester, Z11.24-1979 (ASTM D 56-
79)) for liquids with a viscosity of less than 45 Saybolt Universal 
Seconds (SUS) at 100  deg.F (37.8  deg.C), that do not contain suspended 
solids and do not have a tendency to form a surface film under test; or
    (ii) Pensky-Martens Closed Tester (see American National Standard 
Method of Test for Flash Point by Pensky-Martens Closed Tester, Z11.7-
1979 (ASTM D 93-79)) for liquids with a viscosity equal to or greater 
than 45 SUS at 100  deg.F (37.8  deg.C), or that contain suspended 
solids, or that have a tendency to form a surface film under test; or
    (iii) Setaflash Closed Tester (see American National Standard Method 
of Test for Flash Point by Setaflash Closed Tester (ASTM D 3278-78)).

Organic peroxides, which undergo autoaccelerating thermal decomposition, 
are excluded from any of the flashpoint determination methods specified 
above.
    Foreseeable emergency means any potential occurrence such as, but 
not limited to, equipment failure, rupture of containers, or failure of 
control equipment which could result in an uncontrolled release of a 
hazardous chemical into the workplace.
    Hazardous chemical means any chemical which is a physical hazard or 
a health hazard.
    Hazard warning means any words, pictures, symbols, or combination 
thereof appearing on a label or other appropriate form of warning which 
convey the specific physical and health hazard(s), including target 
organ effects, of the chemical(s) in the container(s). (See the 
definitions for ``physical hazard'' and ``health hazard'' to determine 
the hazards which must be covered.)
    Health hazard means a chemical for which there is statistically 
significant evidence based on at least one study conducted in accordance 
with established scientific principles that acute or chronic health 
effects may occur in exposed employees. The term ``health hazard'' 
includes chemicals which are carcinogens, toxic or highly toxic agents, 
reproductive toxins, irritants, corrosives, sensitizers, hepatotoxins, 
nephrotoxins, neurotoxins, agents which act on the hematopoietic system, 
and agents which damage the lungs, skin, eyes, or mucous membranes. 
Appendix A provides further definitions and explanations of the scope of 
health hazards covered by this section, and Appendix B describes the 
criteria to be used to determine whether or not a chemical is to be 
considered hazardous for purposes of this standard.
    Identity means any chemical or common name which is indicated on the 
material safety data sheet (MSDS) for the chemical. The identity used 
shall permit cross-references to be made among the required list of 
hazardous chemicals, the label and the MSDS.
    Immediate use means that the hazardous chemical will be under the 
control of and used only by the person who transfers it from a labeled 
container and only within the work shift in which it is transferred.
    Importer means the first business with employees within the Customs 
Territory of the United States which receives hazardous chemicals 
produced in other countries for the purpose of supplying them to 
distributors or employers within the United States.
    Label means any written, printed, or graphic material displayed on 
or affixed to containers of hazardous chemicals.
    Material safety data sheet (MSDS) means written or printed material 
concerning a hazardous chemical which is prepared in accordance with 
paragraph (g) of this section.
    Mixture means any combination of two or more chemicals if the 
combination is not, in whole or in part, the result of a chemical 
reaction.
    Organic peroxide means an organic compound that contains the 
bivalent -O-O-structure and which may be considered to be a structural 
derivative of hydrogen peroxide where one or both of the hydrogen atoms 
has been replaced by an organic radical.

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    Oxidizer means a chemical other than a blasting agent or explosive 
as defined in Sec. 1910.109(a), that initiates or promotes combustion in 
other materials, thereby causing fire either of itself or through the 
release of oxygen or other gases.
    Physical hazard means a chemical for which there is scientifically 
valid evidence that it is a combustible liquid, a compressed gas, 
explosive, flammable, an organic peroxide, an oxidizer, pyrophoric, 
unstable (reactive) or water-reactive.
    Produce means to manufacture, process, formulate, blend, extract, 
generate, emit, or repackage.
    Pyrophoric means a chemical that will ignite spontaneously in air at 
a temperature of 130  deg.F (54.4  deg.C) or below.
    Responsible party means someone who can provide additional 
information on the hazardous chemical and appropriate emergency 
procedures, if necessary.
    Specific chemical identity means the chemical name, Chemical 
Abstracts Service (CAS) Registry Number, or any other information that 
reveals the precise chemical designation of the substance.
    Trade secret means any confidential formula, pattern, process, 
device, information or compilation of information that is used in an 
employer's business, and that gives the employer an opportunity to 
obtain an advantage over competitors who do not know or use it. Appendix 
D sets out the criteria to be used in evaluating trade secrets.
    Unstable (reactive) means a chemical which in the pure state, or as 
produced or transported, will vigorously polymerize, decompose, 
condense, or will become self-reactive under conditions of shocks, 
pressure or temperature.
    Use means to package, handle, react, emit, extract, generate as a 
byproduct, or transfer.
    Water-reactive means a chemical that reacts with water to release a 
gas that is either flammable or presents a health hazard.
    Work area means a room or defined space in a workplace where 
hazardous chemicals are produced or used, and where employees are 
present.
    Workplace means an establishment, job site, or project, at one 
geographical location containing one or more work areas.
    (d) Hazard determination. (1) Chemical manufacturers and importers 
shall evaluate chemicals produced in their workplaces or imported by 
them to determine if they are hazardous. Employers are not required to 
evaluate chemicals unless they choose not to rely on the evaluation 
performed by the chemical manufacturer or importer for the chemical to 
satisfy this requirement.
    (2) Chemical manufacturers, importers or employers evaluating 
chemicals shall identify and consider the available scientific evidence 
concerning such hazards. For health hazards, evidence which is 
statistically significant and which is based on at least one positive 
study conducted in accordance with established scientific principles is 
considered to be sufficient to establish a hazardous effect if the 
results of the study meet the definitions of health hazards in this 
section. Appendix A shall be consulted for the scope of health hazards 
covered, and Appendix B shall be consulted for the criteria to be 
followed with respect to the completeness of the evaluation, and the 
data to be reported.
    (3) The chemical manufacturer, importer or employer evaluating 
chemicals shall treat the following sources as establishing that the 
chemicals listed in them are hazardous:
    (i) 29 CFR part 1910, subpart Z, Toxic and Hazardous Substances, 
Occupational Safety and Health Administration (OSHA); or,
    (ii) Threshold Limit Values for Chemical Substances and Physical 
Agents in the Work Environment, American Conference of Governmental 
Industrial Hygienists (ACGIH) (latest edition). The chemical 
manufacturer, importer, or employer is still responsible for evaluating 
the hazards associated with the chemicals in these source lists in 
accordance with the requirements of this standard.
    (4) Chemical manufacturers, importers and employers evaluating 
chemicals shall treat the following sources as establishing that a 
chemical is a carcinogen or potential carcinogen for hazard 
communication purposes:

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    (i) National Toxicology Program (NTP), Annual Report on Carcinogens 
(latest edition);
    (ii) International Agency for Research on Cancer (IARC) Monographs 
(latest editions); or
    (iii) 29 CFR part 1910, subpart Z, Toxic and Hazardous Substances, 
Occupational Safety and Health Administration.
    Note: The Registry of Toxic Effects of Chemical Substances published 
by the National Institute for Occupational Safety and Health indicates 
whether a chemical has been found by NTP or IARC to be a potential 
carcinogen.
    (5) The chemical manufacturer, importer or employer shall determine 
the hazards of mixtures of chemicals as follows:
    (i) If a mixture has been tested as a whole to determine its 
hazards, the results of such testing shall be used to determine whether 
the mixture is hazardous;
    (ii) If a mixture has not been tested as a whole to determine 
whether the mixture is a health hazard, the mixture shall be assumed to 
present the same health hazards as do the components which comprise one 
percent (by weight or volume) or greater of the mixture, except that the 
mixture shall be assumed to present a carcinogenic hazard if it contains 
a component in concentrations of 0.1 percent or greater which is 
considered to be a carcinogen under paragraph (d)(4) of this section;
    (iii) If a mixture has not been tested as a whole to determine 
whether the mixture is a physical hazard, the chemical manufacturer, 
importer, or employer may use whatever scientifically valid data is 
available to evaluate the physical hazard potential of the mixture; and,
    (iv) If the chemical manufacturer, importer, or employer has 
evidence to indicate that a component present in the mixture in 
concentrations of less than one percent (or in the case of carcinogens, 
less than 0.1 percent) could be released in concentrations which would 
exceed an established OSHA permissible exposure limit or ACGIH Threshold 
Limit Value, or could present a health risk to employees in those 
concentrations, the mixture shall be assumed to present the same hazard.
    (6) Chemical manufacturers, importers, or employers evaluating 
chemicals shall describe in writing the procedures they use to determine 
the hazards of the chemical they evaluate. The written procedures are to 
be made available, upon request, to employees, their designated 
representatives, the Assistant Secretary and the Director. The written 
description may be incorporated into the written hazard communication 
program required under paragraph (e) of this section.
    (e) Written hazard communication program. (1) Employers shall 
develop, implement, and maintain at each workplace, a written hazard 
communication program which at least describes how the criteria 
specified in paragraphs (f), (g), and (h) of this section for labels and 
other forms of warning, material safety data sheets, and employee 
information and training will be met, and which also includes the 
following:
    (i) A list of the hazardous chemicals known to be present using an 
identity that is referenced on the appropriate material safety data 
sheet (the list may be compiled for the workplace as a whole or for 
individual work areas); and,
    (ii) The methods the employer will use to inform employees of the 
hazards of non-routine tasks (for example, the cleaning of reactor 
vessels), and the hazards associated with chemicals contained in 
unlabeled pipes in their work areas.
    (2) Multi-employer workplaces. Employers who produce, use, or store 
hazardous chemicals at a workplace in such a way that the employees of 
other employer(s) may be exposed (for example, employees of a 
construction contractor working on-site) shall additionally ensure that 
the hazard communication programs developed and implemented under this 
paragraph (e) include the following:
    (i) The methods the employer will use to provide the other 
employer(s) on-site access to material safety data sheets for each 
hazardous chemical the other employer(s)' employees may be exposed to 
while working;
    (ii) The methods the employer will use to inform the other 
employer(s) of any precautionary measures that need

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to be taken to protect employees during the workplace's normal operating 
conditions and in foreseeable emergencies; and,
    (iii) The methods the employer will use to inform the other 
employer(s) of the labeling system used in the workplace.
    (3) The employer may rely on an existing hazard communication 
program to comply with these requirements, provided that it meets the 
criteria established in this paragraph (e).
    (4) The employer shall make the written hazard communication program 
available, upon request, to employees, their designated representatives, 
the Assistant Secretary and the Director, in accordance with the 
requirements of 29 CFR 1910.20 (e).
    (5) Where employees must travel between workplaces during a 
workshift, i.e., their work is carried out at more than one geographical 
location, the written hazard communication program may be kept at the 
primary workplace facility.
    (f) Labels and other forms of warning. (1) The chemical 
manufacturer, importer, or distributor shall ensure that each container 
of hazardous chemicals leaving the workplace is labeled, tagged or 
marked with the following information:
    (i) Identity of the hazardous chemical(s);
    (ii) Appropriate hazard warnings; and
    (iii) Name and address of the chemical manufacturer, importer, or 
other responsible party.
    (2)(i) For solid metal (such as a steel beam or a metal casting), 
solid wood, or plastic items that are not exempted as articles due to 
their downstream use, or shipments of whole grain, the required label 
may be transmitted to the customer at the time of the initial shipment, 
and need not be included with subsequent shipments to the same employer 
unless the information on the label changes;
    (ii) The label may be transmitted with the initial shipment itself, 
or with the material safety data sheet that is to be provided prior to 
or at the time of the first shipment; and,
    (iii) This exception to requiring labels on every container of 
hazardous chemicals is only for the solid material itself, and does not 
apply to hazardous chemicals used in conjunction with, or known to be 
present with, the material and to which employees handling the items in 
transit may be exposed (for example, cutting fluids or pesticides in 
grains).
    (3) Chemical manufacturers, importers, or distributors shall ensure 
that each container of hazardous chemicals leaving the workplace is 
labeled, tagged, or marked in accordance with this section in a manner 
which does not conflict with the requirements of the Hazardous Materials 
Transportation Act (49 U.S.C. 1801 et seq.) and regulations issued under 
that Act by the Department of Transportation.
    (4) If the hazardous chemical is regulated by OSHA in a substance-
specific health standard, the chemical manufacturer, importer, 
distributor or employer shall ensure that the labels or other forms of 
warning used are in accordance with the requirements of that standard.
    (5) Except as provided in paragraphs (f)(6) and (f)(7) of this 
section, the employer shall ensure that each container of hazardous 
chemicals in the workplace is labeled, tagged or marked with the 
following information:
    (i) Identity of the hazardous chemical(s) contained therein; and,
    (ii) Appropriate hazard warnings, or alternatively, words, pictures, 
symbols, or combination thereof, which provide at least general 
information regarding the hazards of the chemicals, and which, in 
conjunction with the other information immediately available to 
employees under the hazard communication program, will provide employees 
with the specific information regarding the physical and health hazards 
of the hazardous chemical.
    (6) The employer may use signs, placards, process sheets, batch 
tickets, operating procedures, or other such written materials in lieu 
of affixing labels to individual stationary process containers, as long 
as the alternative method identifies the containers to which it is 
applicable and conveys the information required by paragraph (f)(5) of 
this section to be on a label. The written materials shall be readily 
accessible to the employees in their work area throughout each work 
shift.

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    (7) The employer is not required to label portable containers into 
which hazardous chemicals are transferred from labeled containers, and 
which are intended only for the immediate use of the employee who 
performs the transfer. For purposes of this section, drugs which are 
dispensed by a pharmacy to a health care provider for direct 
administration to a patient are exempted from labeling.
    (8) The employer shall not remove or deface existing labels on 
incoming containers of hazardous chemicals, unless the container is 
immediately marked with the required information.
    (9) The employer shall ensure that labels or other forms of warning 
are legible, in English, and prominently displayed on the container, or 
readily available in the work area throughout each work shift. Employers 
having employees who speak other languages may add the information in 
their language to the material presented, as long as the information is 
presented in English as well.
    (10) The chemical manufacturer, importer, distributor or employer 
need not affix new labels to comply with this section if existing labels 
already convey the required information.
    (11) Chemical manufacturers, importers, distributors, or employers 
who become newly aware of any significant information regarding the 
hazards of a chemical shall revise the labels for the chemical within 
three months of becoming aware of the new information. Labels on 
containers of hazardous chemicals shipped after that time shall contain 
the new information. If the chemical is not currently produced or 
imported, the chemical manufacturer, importers, distributor, or employer 
shall add the information to the label before the chemical is shipped or 
introduced into the workplace again.
    (g) Material safety data sheets. (1) Chemical manufacturers and 
importers shall obtain or develop a material safety data sheet for each 
hazardous chemical they produce or import. Employers shall have a 
material safety data sheet in the workplace for each hazardous chemical 
which they use.
    (2) Each material safety data sheet shall be in English (although 
the employer may maintain copies in other languages as well), and shall 
contain at least the following information:
    (i) The identity used on the label, and, except as provided for in 
paragraph (i) of this section on trade secrets:
    (A) If the hazardous chemical is a single substance, its chemical 
and common name(s);
    (B) If the hazardous chemical is a mixture which has been tested as 
a whole to determine its hazards, the chemical and common name(s) of the 
ingredients which contribute to these known hazards, and the common 
name(s) of the mixture itself; or,
    (C) If the hazardous chemical is a mixture which has not been tested 
as a whole:
    (1) The chemical and common name(s) of all ingredients which have 
been determined to be health hazards, and which comprise 1% or greater 
of the composition, except that chemicals identified as carcinogens 
under paragraph (d) of this section shall be listed if the 
concentrations are 0.1% or greater; and,
    (2) The chemical and common name(s) of all ingredients which have 
been determined to be health hazards, and which comprise less than 1% 
(0.1% for carcinogens) of the mixture, if there is evidence that the 
ingredient(s) could be released from the mixture in concentrations which 
would exceed an established OSHA permissible exposure limit or ACGIH 
Threshold Limit Value, or could present a health risk to employees; and,
    (3) The chemical and common name(s) of all ingredients which have 
been determined to present a physical hazard when present in the 
mixture;
    (ii) Physical and chemical characteristics of the hazardous chemical 
(such as vapor pressure, flash point);
    (iii) The physical hazards of the hazardous chemical, including the 
potential for fire, explosion, and reactivity;
    (iv) The health hazards of the hazardous chemical, including signs 
and symptoms of exposure, and any medical conditions which are generally 
recognized as being aggravated by exposure to the chemical;
    (v) The primary route(s) of entry;
    (vi) The OSHA permissible exposure limit, ACGIH Threshold Limit 
Value,

[[Page 470]]

and any other exposure limit used or recommended by the chemical 
manufacturer, importer, or employer preparing the material safety data 
sheet, where available;
    (vii) Whether the hazardous chemical is listed in the National 
Toxicology Program (NTP) Annual Report on Carcinogens (latest edition) 
or has been found to be a potential carcinogen in the International 
Agency for Research on Cancer (IARC) Monographs (latest editions), or by 
OSHA;
    (viii) Any generally applicable precautions for safe handling and 
use which are known to the chemical manufacturer, importer or employer 
preparing the material safety data sheet, including appropriate hygienic 
practices, protective measures during repair and maintenance of 
contaminated equipment, and procedures for clean-up of spills and leaks;
    (ix) Any generally applicable control measures which are known to 
the chemical manufacturer, importer or employer preparing the material 
safety data sheet, such as appropriate engineering controls, work 
practices, or personal protective equipment;
    (x) Emergency and first aid procedures;
    (xi) The date of preparation of the material safety data sheet or 
the last change to it; and,
    (xii) The name, address and telephone number of the chemical 
manufacturer, importer, employer or other responsible party preparing or 
distributing the material safety data sheet, who can provide additional 
information on the hazardous chemical and appropriate emergency 
procedures, if necessary.
    (3) If no relevant information is found for any given category on 
the material safety data sheet, the chemical manufacturer, importer or 
employer preparing the material safety data sheet shall mark it to 
indicate that no applicable information was found.
    (4) Where complex mixtures have similar hazards and contents (i.e. 
the chemical ingredients are essentially the same, but the specific 
composition varies from mixture to mixture), the chemical manufacturer, 
importer or employer may prepare one material safety data sheet to apply 
to all of these similar mixtures.
    (5) The chemical manufacturer, importer or employer preparing the 
material safety data sheet shall ensure that the information recorded 
accurately reflects the scientific evidence used in making the hazard 
determination. If the chemical manufacturer, importer or employer 
preparing the material safety data sheet becomes newly aware of any 
significant information regarding the hazards of a chemical, or ways to 
protect against the hazards, this new information shall be added to the 
material safety data sheet within three months. If the chemical is not 
currently being produced or imported the chemical manufacturer or 
importer shall add the information to the material safety data sheet 
before the chemical is introduced into the workplace again.
    (6)(i) Chemical manufacturers or importers shall ensure that 
distributors and employers are provided an appropriate material safety 
data sheet with their initial shipment, and with the first shipment 
after a material safety data sheet is updated;
    (ii) The chemical manufacturer or importer shall either provide 
material safety data sheets with the shipped containers or send them to 
the distributor or employer prior to or at the time of the shipment;
    (iii) If the material safety data sheet is not provided with a 
shipment that has been labeled as a hazardous chemical, the distributor 
or employer shall obtain one from the chemical manufacturer or importer 
as soon as possible; and,
    (iv) The chemical manufacturer or importer shall also provide 
distributors or employers with a material safety data sheet upon 
request.
    (7)(i) Distributors shall ensure that material safety data sheets, 
and updated information, are provided to other distributors and 
employers with their initial shipment and with the first shipment after 
a material safety data sheet is updated;
    (ii) The distributor shall either provide material safety data 
sheets with the shipped containers, or send them to the other 
distributor or employer prior to or at the time of the shipment;

[[Page 471]]

    (iii) Retail distributors selling hazardous chemicals to employers 
having a commercial account shall provide a material safety data sheet 
to such employers upon request, and shall post a sign or otherwise 
inform them that a material safety data sheet is available;
    (iv) Wholesale distributors selling hazardous chemicals to employers 
over-the-counter may also provide material safety data sheets upon the 
request of the employer at the time of the over-the-counter purchase, 
and shall post a sign or otherwise inform such employers that a material 
safety data sheet is available;
    (v) If an employer without a commercial account purchases a 
hazardous chemical from a retail distributor not required to have 
material safety data sheets on file (i.e., the retail distributor does 
not have commercial accounts and does not use the materials), the retail 
distributor shall provide the employer, upon request, with the name, 
address, and telephone number of the chemical manufacturer, importer, or 
distributor from which a material safety data sheet can be obtained;
    (vi) Wholesale distributors shall also provide material safety data 
sheets to employers or other distributors upon request; and,
    (vii) Chemical manufacturers, importers, and distributors need not 
provide material safety data sheets to retail distributors that have 
informed them that the retail distributor does not sell the product to 
commercial accounts or open the sealed container to use it in their own 
workplaces.
    (8) The employer shall maintain in the workplace copies of the 
required material safety data sheets for each hazardous chemical, and 
shall ensure that they are readily accessible during each work shift to 
employees when they are in their work area(s). (Electronic access, 
microfiche, and other alternatives to maintaining paper copies of the 
material safety data sheets are permitted as long as no barriers to 
immediate employee access in each workplace are created by such 
options.)
    (9) Where employees must travel between workplaces during a 
workshift, i.e., their work is carried out at more than one geographical 
location, the material safety data sheets may be kept at the primary 
workplace facility. In this situation, the employer shall ensure that 
employees can immediately obtain the required information in an 
emergency.
    (10) Material safety data sheets may be kept in any form, including 
operating procedures, and may be designed to cover groups of hazardous 
chemicals in a work area where it may be more appropriate to address the 
hazards of a process rather than individual hazardous chemicals. 
However, the employer shall ensure that in all cases the required 
information is provided for each hazardous chemical, and is readily 
accessible during each work shift to employees when they are in in their 
work area(s).
    (11) Material safety data sheets shall also be made readily 
available, upon request, to designated representatives and to the 
Assistant Secretary, in accordance with the requirements of 29 CFR 
1910.20(e). The Director shall also be given access to material safety 
data sheets in the same manner.
    (h) Employee information and training. (1) Employers shall provide 
employees with effective information and training on hazardous chemicals 
in their work area at the time of their initial assignment, and whenever 
a new physical or health hazard the employees have not previously been 
trained about is introduced into their work area. Information and 
training may be designed to cover categories of hazards (e.g., 
flammability, carcinogenicity) or specific chemicals. Chemical-specific 
information must always be available through labels and material safety 
data sheets.
    (2) Information. Employees shall be informed of:
    (i) The requirements of this section;
    (ii) Any operations in their work area where hazardous chemicals are 
present; and,
    (iii) The location and availability of the written hazard 
communication program, including the required list(s) of hazardous 
chemicals, and material safety data sheets required by this section.
    (3) Training. Employee training shall include at least:
    (i) Methods and observations that may be used to detect the presence 
or

[[Page 472]]

release of a hazardous chemical in the work area (such as monitoring 
conducted by the employer, continuous monitoring devices, visual 
appearance or odor of hazardous chemicals when being released, etc.);
    (ii) The physical and health hazards of the chemicals in the work 
area;
    (iii) The measures employees can take to protect themselves from 
these hazards, including specific procedures the employer has 
implemented to protect employees from exposure to hazardous chemicals, 
such as appropriate work practices, emergency procedures, and personal 
protective equipment to be used; and,
    (iv) The details of the hazard communication program developed by 
the employer, including an explanation of the labeling system and the 
material safety data sheet, and how employees can obtain and use the 
appropriate hazard information.
    (i) Trade secrets. (1) The chemical manufacturer, importer, or 
employer may withhold the specific chemical identity, including the 
chemical name and other specific identification of a hazardous chemical, 
from the material safety data sheet, provided that:
    (i) The claim that the information withheld is a trade secret can be 
supported;
    (ii) Information contained in the material safety data sheet 
concerning the properties and effects of the hazardous chemical is 
disclosed;
    (iii) The material safety data sheet indicates that the specific 
chemical identity is being withheld as a trade secret; and,
    (iv) The specific chemical identity is made available to health 
professionals, employees, and designated representatives in accordance 
with the applicable provisions of this paragraph.
    (2) Where a treating physician or nurse determines that a medical 
emergency exists and the specific chemical identity of a hazardous 
chemical is necessary for emergency or first-aid treatment, the chemical 
manufacturer, importer, or employer shall immediately disclose the 
specific chemical identity of a trade secret chemical to that treating 
physician or nurse, regardless of the existence of a written statement 
of need or a confidentiality agreement. The chemical manufacturer, 
importer, or employer may require a written statement of need and 
confidentiality agreement, in accordance with the provisions of 
paragraphs (i) (3) and (4) of this section, as soon as circumstances 
permit.
    (3) In non-emergency situations, a chemical manufacturer, importer, 
or employer shall, upon request, disclose a specific chemical identity, 
otherwise permitted to be withheld under paragraph (i)(1) of this 
section, to a health professional (i.e. physician, industrial hygienist, 
toxicologist, epidemiologist, or occupational health nurse) providing 
medical or other occupational health services to exposed employee(s), 
and to employees or designated representatives, if:
    (i) The request is in writing;
    (ii) The request describes with reasonable detail one or more of the 
following occupational health needs for the information:
    (A) To assess the hazards of the chemicals to which employees will 
be exposed;
    (B) To conduct or assess sampling of the workplace atmosphere to 
determine employee exposure levels;
    (C) To conduct pre-assignment or periodic medical surveillance of 
exposed employees;
    (D) To provide medical treatment to exposed employees;
    (E) To select or assess appropriate personal protective equipment 
for exposed employees;
    (F) To design or assess engineering controls or other protective 
measures for exposed employees; and,
    (G) To conduct studies to determine the health effects of exposure.
    (iii) The request explains in detail why the disclosure of the 
specific chemical identity is essential and that, in lieu thereof, the 
disclosure of the following information to the health professional, 
employee, or designated representative, would not satisfy the purposes 
described in paragraph (i)(3)(ii) of this section:
    (A) The properties and effects of the chemical;
    (B) Measures for controlling workers' exposure to the chemical;

[[Page 473]]

    (C) Methods of monitoring and analyzing worker exposure to the 
chemical; and,
    (D) Methods of diagnosing and treating harmful exposures to the 
chemical;
    (iv) The request includes a description of the procedures to be used 
to maintain the confidentiality of the disclosed information; and,
    (v) The health professional, and the employer or contractor of the 
services of the health professional (i.e. downstream employer, labor 
organization, or individual employee), employee, or designated 
representative, agree in a written confidentiality agreement that the 
health professional, employee, or designated representative, will not 
use the trade secret information for any purpose other than the health 
need(s) asserted and agree not to release the information under any 
circumstances other than to OSHA, as provided in paragraph (i)(6) of 
this section, except as authorized by the terms of the agreement or by 
the chemical manufacturer, importer, or employer.
    (4) The confidentiality agreement authorized by paragraph (i)(3)(iv) 
of this section:
    (i) May restrict the use of the information to the health purposes 
indicated in the written statement of need;
    (ii) May provide for appropriate legal remedies in the event of a 
breach of the agreement, including stipulation of a reasonable pre-
estimate of likely damages; and,
    (iii) May not include requirements for the posting of a penalty 
bond.
    (5) Nothing in this standard is meant to preclude the parties from 
pursuing non-contractual remedies to the extent permitted by law.
    (6) If the health professional, employee, or designated 
representative receiving the trade secret information decides that there 
is a need to disclose it to OSHA, the chemical manufacturer, importer, 
or employer who provided the information shall be informed by the health 
professional, employee, or designated representative prior to, or at the 
same time as, such disclosure.
    (7) If the chemical manufacturer, importer, or employer denies a 
written request for disclosure of a specific chemical identity, the 
denial must:
    (i) Be provided to the health professional, employee, or designated 
representative, within thirty days of the request;
    (ii) Be in writing;
    (iii) Include evidence to support the claim that the specific 
chemical identity is a trade secret;
    (iv) State the specific reasons why the request is being denied; 
and,
    (v) Explain in detail how alternative information may satisfy the 
specific medical or occupational health need without revealing the 
specific chemical identity.
    (8) The health professional, employee, or designated representative 
whose request for information is denied under paragraph (i)(3) of this 
section may refer the request and the written denial of the request to 
OSHA for consideration.
    (9) When a health professional, employee, or designated 
representative refers the denial to OSHA under paragraph (i)(8) of this 
section, OSHA shall consider the evidence to determine if:
    (i) The chemical manufacturer, importer, or employer has supported 
the claim that the specific chemical identity is a trade secret;
    (ii) The health professional, employee, or designated representative 
has supported the claim that there is a medical or occupational health 
need for the information; and,
    (iii) The health professional, employee or designated representative 
has demonstrated adequate means to protect the confidentiality.
    (10)(i) If OSHA determines that the specific chemical identity 
requested under paragraph (i)(3) of this section is not a bona fide 
trade secret, or that it is a trade secret, but the requesting health 
professional, employee, or designated representative has a legitimate 
medical or occupational health need for the information, has executed a 
written confidentiality agreement, and has shown adequate means to 
protect the confidentiality of the information, the chemical 
manufacturer, importer, or employer will be subject to citation by OSHA.
    (ii) If a chemical manufacturer, importer, or employer demonstrates 
to OSHA that the execution of a confidentiality agreement would not 
provide

[[Page 474]]

sufficient protection against the potential harm from the unauthorized 
disclosure of a trade secret specific chemical identity, the Assistant 
Secretary may issue such orders or impose such additional limitations or 
conditions upon the disclosure of the requested chemical information as 
may be appropriate to assure that the occupational health services are 
provided without an undue risk of harm to the chemical manufacturer, 
importer, or employer.
    (11) If a citation for a failure to release specific chemical 
identity information is contested by the chemical manufacturer, 
importer, or employer, the matter will be adjudicated before the 
Occupational Safety and Health Review Commission in accordance with the 
Act's enforcement scheme and the applicable Commission rules of 
procedure. In accordance with the Commission rules, when a chemical 
manufacturer, importer, or employer continues to withhold the 
information during the contest, the Administrative Law Judge may review 
the citation and supporting documentation in camera or issue appropriate 
orders to protect the confidentiality of such matters.
    (12) Notwithstanding the existence of a trade secret claim, a 
chemical manufacturer, importer, or employer shall, upon request, 
disclose to the Assistant Secretary any information which this section 
requires the chemical manufacturer, importer, or employer to make 
available. Where there is a trade secret claim, such claim shall be made 
no later than at the time the information is provided to the Assistant 
Secretary so that suitable determinations of trade secret status can be 
made and the necessary protections can be implemented.
    (13) Nothing in this paragraph shall be construed as requiring the 
disclosure under any circumstances of process or percentage of mixture 
information which is a trade secret.
    (j) Effective dates. Chemical manufacturers, importers, 
distributors, and employers shall be in compliance with all provisions 
of this section by March 11, 1994.
    Note: The effective date of the clarification that the exemption of 
wood and wood products from the Hazard Communication standard in 
paragraph (b)(6)(iv) only applies to wood and wood products including 
lumber which will not be processed, where the manufacturer or importer 
can establish that the only hazard they pose to employees is the 
potential for flammability or combustibility, and that the exemption 
does not apply to wood or wood products which have been treated with a 
hazardous chemical covered by this standard, and wood which may be 
subsequently sawed or cut generating dust has been stayed from March 11, 
1994 to August 11, 1994.

   Appendix A to Sec. 1910.1200--Health Hazard Definitions (Mandatory)

    Although safety hazards related to the physical characteristics of a 
chemical can be objectively defined in terms of testing requirements 
(e.g. flammability), health hazard definitions are less precise and more 
subjective. Health hazards may cause measurable changes in the body--
such as decreased pulmonary function. These changes are generally 
indicated by the occurrence of signs and symptoms in the exposed 
employees--such as shortness of breath, a non-measurable, subjective 
feeling. Employees exposed to such hazards must be apprised of both the 
change in body function and the signs and symptoms that may occur to 
signal that change.
    The determination of occupational health hazards is complicated by 
the fact that many of the effects or signs and symptoms occur commonly 
in non-occupationally exposed populations, so that effects of exposure 
are difficult to separate from normally occurring illnesses. 
Occasionally, a substance causes an effect that is rarely seen in the 
population at large, such as angiosarcomas caused by vinyl chloride 
exposure, thus making it easier to ascertain that the occupational 
exposure was the primary causative factor. More often, however, the 
effects are common, such as lung cancer. The situation is further 
complicated by the fact that most chemicals have not been adequately 
tested to determine their health hazard potential, and data do not exist 
to substantiate these effects.
    There have been many attempts to categorize effects and to define 
them in various ways. Generally, the terms ``acute'' and ``chronic'' are 
used to delineate between effects on the basis of severity or duration. 
``Acute'' effects usually occur rapidly as a result of short-term 
exposures, and are of short duration. ``Chronic'' effects generally 
occur as a result of long-term exposure, and are of long duration.
    The acute effects referred to most frequently are those defined by 
the American National Standards Institute (ANSI) standard for 
Precautionary Labeling of Hazardous Industrial Chemicals (Z129.1-1988)--
irritation, corrosivity, sensitization and lethal dose. Although these 
are important health effects, they do not adequately cover the

[[Page 475]]

considerable range of acute effects which may occur as a result of 
occupational exposure, such as, for example, narcosis.
    Similarly, the term chronic effect is often used to cover only 
carcinogenicity, teratogenicity, and mutagenicity. These effects are 
obviously a concern in the workplace, but again, do not adequately cover 
the area of chronic effects, excluding, for example, blood dyscrasias 
(such as anemia), chronic bronchitis and liver atrophy.
    The goal of defining precisely, in measurable terms, every possible 
health effect that may occur in the workplace as a result of chemical 
exposures cannot realistically be accomplished. This does not negate the 
need for employees to be informed of such effects and protected from 
them. Appendix B, which is also mandatory, outlines the principles and 
procedures of hazard assessment.
    For purposes of this section, any chemicals which meet any of the 
following definitions, as determined by the criteria set forth in 
Appendix B are health hazards. However, this is not intended to be an 
exclusive categorization scheme. If there are available scientific data 
that involve other animal species or test methods, they must also be 
evaluated to determine the applicability of the HCS.7
    1. Carcinogen: A chemical is considered to be a carcinogen if:
    (a) It has been evaluated by the International Agency for Research 
on Cancer (IARC), and found to be a carcinogen or potential carcinogen; 
or
    (b) It is listed as a carcinogen or potential carcinogen in the 
Annual Report on Carcinogens published by the National Toxicology 
Program (NTP) (latest edition); or,
    (c) It is regulated by OSHA as a carcinogen.
    2. Corrosive: A chemical that causes visible destruction of, or 
irreversible alterations in, living tissue by chemical action at the 
site of contact. For example, a chemical is considered to be corrosive 
if, when tested on the intact skin of albino rabbits by the method 
described by the U.S. Department of Transportation in appendix A to 49 
CFR part 173, it destroys or changes irreversibly the structure of the 
tissue at the site of contact following an exposure period of four 
hours. This term shall not refer to action on inanimate surfaces.
    3. Highly toxic: A chemical falling within any of the following 
categories:
    (a) A chemical that has a median lethal dose (LD50) of 50 
milligrams or less per kilogram of body weight when administered orally 
to albino rats weighing between 200 and 300 grams each.
    (b) A chemical that has a median lethal dose (LD50) of 
200 milligrams or less per kilogram of body weight when administered by 
continuous contact for 24 hours (or less if death occurs within 24 
hours) with the bare skin of albino rabbits weighing between two and 
three kilograms each.
    (c) A chemical that has a median lethal concentration 
(LC50) in air of 200 parts per million by volume or less of 
gas or vapor, or 2 milligrams per liter or less of mist, fume, or dust, 
when administered by continuous inhalation for one hour (or less if 
death occurs within one hour) to albino rats weighing between 200 and 
300 grams each.
    4. Irritant: A chemical, which is not corrosive, but which causes a 
reversible inflammatory effect on living tissue by chemical action at 
the site of contact. A chemical is a skin irritant if, when tested on 
the intact skin of albino rabbits by the methods of 16 CFR 1500.41 for 
four hours exposure or by other appropriate techniques, it results in an 
empirical score of five or more. A chemical is an eye irritant if so 
determined under the procedure listed in 16 CFR 1500.42 or other 
appropriate techniques.
    5. Sensitizer: A chemical that causes a substantial proportion of 
exposed people or animals to develop an allergic reaction in normal 
tissue after repeated exposure to the chemical.
    6. Toxic. A chemical falling within any of the following categories:
    (a) A chemical that has a median lethal dose (LD50) of 
more than 50 milligrams per kilogram but not more than 500 milligrams 
per kilogram of body weight when administered orally to albino rats 
weighing between 200 and 300 grams each.
    (b) A chemical that has a median lethal dose (LD50) of 
more than 200 milligrams per kilogram but not more than 1,000 milligrams 
per kilogram of body weight when administered by continuous contact for 
24 hours (or less if death occurs within 24 hours) with the bare skin of 
albino rabbits weighing between two and three kilograms each.
    (c) A chemical that has a median lethal concentration 
(LC50) in air of more than 200 parts per million but not more 
than 2,000 parts per million by volume of gas or vapor, or more than two 
milligrams per liter but not more than 20 milligrams per liter of mist, 
fume, or dust, when administered by continuous inhalation for one hour 
(or less if death occurs within one hour) to albino rats weighing 
between 200 and 300 grams each.
    7. Target organ effects.
    The following is a target organ categorization of effects which may 
occur, including examples of signs and symptoms and chemicals which have 
been found to cause such effects. These examples are presented to 
illustrate the range and diversity of effects and hazards found in the 
workplace, and the broad scope employers must consider in this area, but 
are not intended to be all-inclusive.

a. Hepatotoxins: Chemicals which produce liver damage3
    Signs & Symptoms: Jaundice; liver enlargement

[[Page 476]]

    Chemicals: Carbon tetrachloride; nitrosamines
b. Nephrotoxins: Chemicals which produce kidney damage
    Signs & Symptoms: Edema; proteinuria
    Chemicals: Halogenated hydrocarbons; uranium
c. Neurotoxins: Chemicals which produce their primary toxic effects on 
          the nervous system
    Signs & Symptoms: Narcosis; behavioral changes; decrease in motor 
functions
    Chemicals: Mercury; carbon disulfide
d. Agents which act on the blood or hemato-poietic system: Decrease 
          hemoglobin function; deprive the body tissues of oxygen
    Signs & Symptoms: Cyanosis; loss of consciousness
    Chemicals: Carbon monoxide; cyanides
e. Agents which damage the lung: Chemicals which irritate or damage 
          pulmonary tissue
    Signs & Symptoms: Cough; tightness in chest; shortness of breath
    Chemicals: Silica; asbestos
f. Reproductive toxins: Chemicals which affect the reproductive 
          capabilities including chromosomal damage (mutations) and 
          effects on fetuses (teratogenesis)
    Signs & Symptoms: Birth defects; sterility
    Chemicals: Lead; DBCP
g. Cutaneous hazards: Chemicals which affect the dermal layer of the 
          body
    Signs & Symptoms: Defatting of the skin; rashes; irritation
    Chemicals: Ketones; chlorinated compounds
h. Eye hazards: Chemicals which affect the eye or visual capacity
    Signs & Symptoms: Conjunctivitis; corneal damage
    Chemicals: Organic solvents; acids

     Appendix B to Sec. 1910.1200--Hazard Determination (Mandatory)

    The quality of a hazard communication program is largely dependent 
upon the adequacy and accuracy of the hazard determination. The hazard 
determination requirement of this standard is performance-oriented. 
Chemical manufacturers, importers, and employers evaluating chemicals 
are not required to follow any specific methods for determining hazards, 
but they must be able to demonstrate that they have adequately 
ascertained the hazards of the chemicals produced or imported in 
accordance with the criteria set forth in this Appendix.
    Hazard evaluation is a process which relies heavily on the 
professional judgment of the evaluator, particularly in the area of 
chronic hazards. The performance-orientation of the hazard determination 
does not diminish the duty of the chemical manufacturer, importer or 
employer to conduct a thorough evaluation, examining all relevant data 
and producing a scientifically defensible evaluation. For purposes of 
this standard, the following criteria shall be used in making hazard 
determinations that meet the requirements of this standard.
    1. Carcinogenicity: As described in paragraph (d)(4) of this section 
and Appendix A of this section, a determination by the National 
Toxicology Program, the International Agency for Research on Cancer, or 
OSHA that a chemical is a carcinogen or potential carcinogen will be 
considered conclusive evidence for purposes of this section. In 
addition, however, all available scientific data on carcinogenicity must 
be evaluated in accordance with the provisions of this Appendix and the 
requirements of the rule.
    2. Human data: Where available, epidemiological studies and case 
reports of adverse health effects shall be considered in the evaluation.
    3. Animal data: Human evidence of health effects in exposed 
populations is generally not available for the majority of chemicals 
produced or used in the workplace. Therefore, the available results of 
toxicological testing in animal populations shall be used to predict the 
health effects that may be experienced by exposed workers. In 
particular, the definitions of certain acute hazards refer to specific 
animal testing results (see Appendix A).
    4. Adequacy and reporting of data. The results of any studies which 
are designed and conducted according to established scientific 
principles, and which report statistically significant conclusions 
regarding the health effects of a chemical, shall be a sufficient basis 
for a hazard determination and reported on any material safety data 
sheet. In vitro studies alone generally do not form the basis for a 
definitive finding of hazard under the HCS since they have a positive or 
negative result rather than a statistically significant finding.
    The chemical manufacturer, importer, or employer may also report the 
results of other scientifically valid studies which tend to refute the 
findings of hazard.

                 Appendix C to Sec. 1910.1200 [Reserved]

Appendix D to Sec. 1910.1200--Definition of ``Trade Secret'' (Mandatory)

    The following is a reprint of the Restatement of Torts section 757, 
comment b (1939):
    b. Definition of trade secret. A trade secret may consist of any 
formula, pattern, device or compilation of information which is used in 
one's business, and which gives him an opportunity to obtain an 
advantage over competitors who do not know or use it. It may be a 
formula for a chemical compound, a process of manufacturing, treating or 
preserving materials, a pattern for a machine or other device, or a list 
of customers. It differs from other secret information in a business 
(see

[[Page 477]]

s759 of the Restatement of Torts which is not included in this Appendix) 
in that it is not simply information as to single or ephemeral events in 
the conduct of the business, as, for example, the amount or other terms 
of a secret bid for a contract or the salary of certain employees, or 
the security investments made or contemplated, or the date fixed for the 
announcement of a new policy or for bringing out a new model or the 
like. A trade secret is a process or device for continuous use in the 
operations of the business. Generally it relates to the production of 
goods, as, for example, a machine or formula for the production of an 
article. It may, however, relate to the sale of goods or to other 
operations in the business, such as a code for determining discounts, 
rebates or other concessions in a price list or catalogue, or a list of 
specialized customers, or a method of bookkeeping or other office 
management.
    Secrecy. The subject matter of a trade secret must be secret. 
Matters of public knowledge or of general knowledge in an industry 
cannot be appropriated by one as his secret. Matters which are 
completely disclosed by the goods which one markets cannot be his 
secret. Substantially, a trade secret is known only in the particular 
business in which it is used. It is not requisite that only the 
proprietor of the business know it. He may, without losing his 
protection, communicate it to employees involved in its use. He may 
likewise communicate it to others pledged to secrecy. Others may also 
know of it independently, as, for example, when they have discovered the 
process or formula by independent invention and are keeping it secret. 
Nevertheless, a substantial element of secrecy must exist, so that, 
except by the use of improper means, there would be difficulty in 
acquiring the information. An exact definition of a trade secret is not 
possible. Some factors to be considered in determining whether given 
information is one's trade secret are: (1) The extent to which the 
information is known outside of his business; (2) the extent to which it 
is known by employees and others involved in his business; (3) the 
extent of measures taken by him to guard the secrecy of the information; 
(4) the value of the information to him and his competitors; (5) the 
amount of effort or money expended by him in developing the information; 
(6) the ease or difficulty with which the information could be properly 
acquired or duplicated by others.
    Novelty and prior art. A trade secret may be a device or process 
which is patentable; but it need not be that. It may be a device or 
process which is clearly anticipated in the prior art or one which is 
merely a mechanical improvement that a good mechanic can make. Novelty 
and invention are not requisite for a trade secret as they are for 
patentability. These requirements are essential to patentability because 
a patent protects against unlicensed use of the patented device or 
process even by one who discovers it properly through independent 
research. The patent monopoly is a reward to the inventor. But such is 
not the case with a trade secret. Its protection is not based on a 
policy of rewarding or otherwise encouraging the development of secret 
processes or devices. The protection is merely against breach of faith 
and reprehensible means of learning another's secret. For this limited 
protection it is not appropriate to require also the kind of novelty and 
invention which is a requisite of patentability. The nature of the 
secret is, however, an important factor in determining the kind of 
relief that is appropriate against one who is subject to liability under 
the rule stated in this Section. Thus, if the secret consists of a 
device or process which is a novel invention, one who acquires the 
secret wrongfully is ordinarily enjoined from further use of it and is 
required to account for the profits derived from his past use. If, on 
the other hand, the secret consists of mechanical improvements that a 
good mechanic can make without resort to the secret, the wrongdoer's 
liability may be limited to damages, and an injunction against future 
use of the improvements made with the aid of the secret may be 
inappropriate.

   Appendix E to Sec. 1910.1200--(Advisory)--Guidelines for Employer 
                               Compliance

    The Hazard Communication Standard (HCS) is based on a simple 
concept--that employees have both a need and a right to know the hazards 
and identities of the chemicals they are exposed to when working. They 
also need to know what protective measures are available to prevent 
adverse effects from occurring. The HCS is designed to provide employees 
with the information they need.
    Knowledge acquired under the HCS will help employers provide safer 
workplaces for their employees. When employers have information about 
the chemicals being used, they can take steps to reduce exposures, 
substitute less hazardous materials, and establish proper work 
practices. These efforts will help prevent the occurrence of work-
related illnesses and injuries caused by chemicals.
    The HCS addresses the issues of evaluating and communicating hazards 
to workers. Evaluation of chemical hazards involves a number of 
technical concepts, and is a process that requires the professional 
judgment of experienced experts. That's why the HCS is designed so that 
employers who simply use chemicals, rather than produce or import them, 
are not required to evaluate the hazards of those chemicals. Hazard 
determination is the responsibility of the producers and importers of 
the materials. Producers and importers of chemicals are then required to 
provide the hazard information to employers that purchase their 
products.

[[Page 478]]

    Employers that don't produce or import chemicals need only focus on 
those parts of the rule that deal with establishing a workplace program 
and communicating information to their workers. This appendix is a 
general guide for such employers to help them determine what's required 
under the rule. It does not supplant or substitute for the regulatory 
provisions, but rather provides a simplified outline of the steps an 
average employer would follow to meet those requirements.

                   1. Becoming Familiar With The Rule.

    OSHA has provided a simple summary of the HCS in a pamphlet entitled 
``Chemical Hazard Communication,'' OSHA Publication Number 3084. Some 
employers prefer to begin to become familiar with the rule's 
requirements by reading this pamphlet. A copy may be obtained from your 
local OSHA Area Office, or by contacting the OSHA Publications Office at 
(202) 523-9667.
    The standard is long, and some parts of it are technical, but the 
basic concepts are simple. In fact, the requirements reflect what many 
employers have been doing for years. You may find that you are already 
largely in compliance with many of the provisions, and will simply have 
to modify your existing programs somewhat. If you are operating in an 
OSHA-approved State Plan State, you must comply with the State's 
requirements, which may be different than those of the Federal rule. 
Many of the State Plan States had hazard communication or ``right-to-
know'' laws prior to promulgation of the Federal rule. Employers in 
State Plan States should contact their State OSHA offices for more 
information regarding applicable requirements.
    The HCS requires information to be prepared and transmitted 
regarding all hazardous chemicals. The HCS covers both physical hazards 
(such as flammability), and health hazards (such as irritation, lung 
damage, and cancer). Most chemicals used in the workplace have some 
hazard potential, and thus will be covered by the rule.
    One difference between this rule and many others adopted by OSHA is 
that this one is performance-oriented. That means that you have the 
flexibility to adapt the rule to the needs of your workplace, rather 
than having to follow specific, rigid requirements. It also means that 
you have to exercise more judgment to implement an appropriate and 
effective program.
    The standard's design is simple. Chemical manufacturers and 
importers must evaluate the hazards of the chemicals they produce or 
import. Using that information, they must then prepare labels for 
containers, and more detailed technical bulletins called material safety 
data sheets (MSDS).
    Chemical manufacturers, importers, and distributors of hazardous 
chemicals are all required to provide the appropriate labels and 
material safety data sheets to the employers to which they ship the 
chemicals. The information is to be provided automatically. Every 
container of hazardous chemicals you receive must be labeled, tagged, or 
marked with the required information. Your suppliers must also send you 
a properly completed material safety data sheet (MSDS) at the time of 
the first shipment of the chemical, and with the next shipment after the 
MSDS is updated with new and significant information about the hazards.
    You can rely on the information received from your suppliers. You 
have no independent duty to analyze the chemical or evaluate the hazards 
of it.
    Employers that ``use'' hazardous chemicals must have a program to 
ensure the information is provided to exposed employees. ``Use'' means 
to package, handle, react, or transfer. This is an intentionally broad 
scope, and includes any situation where a chemical is present in such a 
way that employees may be exposed under normal conditions of use or in a 
foreseeable emergency.
    The requirements of the rule that deal specifically with the hazard 
communication program are found in this section in paragraphs (e), 
written hazard communication program; (f), labels and other forms of 
warning; (g), material safety data sheets; and (h), employee information 
and training. The requirements of these paragraphs should be the focus 
of your attention. Concentrate on becoming familiar with them, using 
paragraphs (b), scope and application, and (c), definitions, as 
references when needed to help explain the provisions.
    There are two types of work operations where the coverage of the 
rule is limited. These are laboratories and operations where chemicals 
are only handled in sealed containers (e.g., a warehouse). The limited 
provisions for these workplaces can be found in paragraph (b) of this 
section, scope and application. Basically, employers having these types 
of work operations need only keep labels on containers as they are 
received; maintain material safety data sheets that are received, and 
give employees access to them; and provide information and training for 
employees. Employers do not have to have written hazard communication 
programs and lists of chemicals for these types of operations.
    The limited coverage of laboratories and sealed container operations 
addresses the obligation of an employer to the workers in the operations 
involved, and does not affect the employer's duties as a distributor of 
chemicals. For example, a distributor may have warehouse operations 
where employees would be protected under the limited sealed container 
provisions. In this situation, requirements for obtaining and 
maintaining MSDSs are limited to providing access to

[[Page 479]]

those received with containers while the substance is in the workplace, 
and requesting MSDSs when employees request access for those not 
received with the containers. However, as a distributor of hazardous 
chemicals, that employer will still have responsibilities for providing 
MSDSs to downstream customers at the time of the first shipment and when 
the MSDS is updated. Therefore, although they may not be required for 
the employees in the work operation, the distributor may, nevertheless, 
have to have MSDSs to satisfy other requirements of the rule.

                      2. Identify Responsible Staff

    Hazard communication is going to be a continuing program in your 
facility. Compliance with the HCS is not a ``one shot deal.'' In order 
to have a successful program, it will be necessary to assign 
responsibility for both the initial and ongoing activities that have to 
be undertaken to comply with the rule. In some cases, these activities 
may already be part of current job assignments. For example, site 
supervisors are frequently responsible for on-the-job training sessions. 
Early identification of the responsible employees, and involvement of 
them in the development of your plan of action, will result in a more 
effective program design. Evaluation of the effectiveness of your 
program will also be enhanced by involvement of affected employees.
    For any safety and health program, success depends on commitment at 
every level of the organization. This is particularly true for hazard 
communication, where success requires a change in behavior. This will 
only occur if employers understand the program, and are committed to its 
success, and if employees are motivated by the people presenting the 
information to them.

            3. Identify Hazardous Chemicals in the Workplace.

    The standard requires a list of hazardous chemicals in the workplace 
as part of the written hazard communication program. The list will 
eventually serve as an inventory of everything for which an MSDS must be 
maintained. At this point, however, preparing the list will help you 
complete the rest of the program since it will give you some idea of the 
scope of the program required for compliance in your facility.
    The best way to prepare a comprehensive list is to survey the 
workplace. Purchasing records may also help, and certainly employers 
should establish procedures to ensure that in the future purchasing 
procedures result in MSDSs being received before a material is used in 
the workplace.
    The broadest possible perspective should be taken when doing the 
survey. Sometimes people think of ``chemicals'' as being only liquids in 
containers. The HCS covers chemicals in all physical forms--liquids, 
solids, gases, vapors, fumes, and mists--whether they are ``contained'' 
or not. The hazardous nature of the chemical and the potential for 
exposure are the factors which determine whether a chemical is covered. 
If it's not hazardous, it's not covered. If there is no potential for 
exposure (e.g., the chemical is inextricably bound and cannot be 
released), the rule does not cover the chemical.
    Look around. Identify chemicals in containers, including pipes, but 
also think about chemicals generated in the work operations. For 
example, welding fumes, dusts, and exhaust fumes are all sources of 
chemical exposures. Read labels provided by suppliers for hazard 
information. Make a list of all chemicals in the workplace that are 
potentially hazardous. For your own information and planning, you may 
also want to note on the list the location(s) of the products within the 
workplace, and an indication of the hazards as found on the label. This 
will help you as you prepare the rest of your program.
    Paragraph (b) of this section, scope and application, includes 
exemptions for various chemicals or workplace situations. After 
compiling the complete list of chemicals, you should review paragraph 
(b) of this section to determine if any of the items can be eliminated 
from the list because they are exempted materials. For example, food, 
drugs, and cosmetics brought into the workplace for employee consumption 
are exempt. So rubbing alcohol in the first aid kit would not be 
covered.
    Once you have compiled as complete a list as possible of the 
potentially hazardous chemicals in the workplace, the next step is to 
determine if you have received material safety data sheets for all of 
them. Check your files against the inventory you have just compiled. If 
any are missing, contact your supplier and request one. It is a good 
idea to document these requests, either by copy of a letter or a note 
regarding telephone conversations. If you have MSDSs for chemicals that 
are not on your list, figure out why. Maybe you don't use the chemical 
anymore. Or maybe you missed it in your survey. Some suppliers do 
provide MSDSs for products that are not hazardous. These do not have to 
be maintained by you.
    You should not allow employees to use any chemicals for which you 
have not received an MSDS. The MSDS provides information you need to 
ensure proper protective measures are implemented prior to exposure.

      4. Preparing and Implementing a Hazard Communication Program

    All workplaces where employees are exposed to hazardous chemicals 
must have a written plan which describes how the standard will be 
implemented in that facility. Preparation of a plan is not just a paper

[[Page 480]]

exercise--all of the elements must be implemented in the workplace in 
order to be in compliance with the rule. See paragraph (e) of this 
section for the specific requirements regarding written hazard 
communication programs. The only work operations which do not have to 
comply with the written plan requirements are laboratories and work 
operations where employees only handle chemicals in sealed containers. 
See paragraph (b) of this section, scope and application, for the 
specific requirements for these two types of workplaces.
    The plan does not have to be lengthy or complicated. It is intended 
to be a blueprint for implementation of your program--an assurance that 
all aspects of the requirements have been addressed.
    Many trade associations and other professional groups have provided 
sample programs and other assistance materials to affected employers. 
These have been very helpful to many employers since they tend to be 
tailored to the particular industry involved. You may wish to 
investigate whether your industry trade groups have developed such 
materials.
    Although such general guidance may be helpful, you must remember 
that the written program has to reflect what you are doing in your 
workplace. Therefore, if you use a generic program it must be adapted to 
address the facility it covers. For example, the written plan must list 
the chemicals present at the site, indicate who is to be responsible for 
the various aspects of the program in your facility, and indicate where 
written materials will be made available to employees.
    If OSHA inspects your workplace for compliance with the HCS, the 
OSHA compliance officer will ask to see your written plan at the outset 
of the inspection. In general, the following items will be considered in 
evaluating your program.
    The written program must describe how the requirements for labels 
and other forms of warning, material safety data sheets, and employee 
information and training, are going to be met in your facility. The 
following discussion provides the type of information compliance 
officers will be looking for to decide whether these elements of the 
hazard communication program have been properly addressed:

                  A. Labels and Other Forms of Warning

    In-plant containers of hazardous chemicals must be labeled, tagged, 
or marked with the identity of the material and appropriate hazard 
warnings. Chemical manufacturers, importers, and distributors are 
required to ensure that every container of hazardous chemicals they ship 
is appropriately labeled with such information and with the name and 
address of the producer or other responsible party. Employers purchasing 
chemicals can rely on the labels provided by their suppliers. If the 
material is subsequently transferred by the employer from a labeled 
container to another container, the employer will have to label that 
container unless it is subject to the portable container exemption. See 
paragraph (f) of this section for specific labeling requirements.
    The primary information to be obtained from an OSHA-required label 
is an identity for the material, and appropriate hazard warnings. The 
identity is any term which appears on the label, the MSDS, and the list 
of chemicals, and thus links these three sources of information. The 
identity used by the supplier may be a common or trade name (``Black 
Magic Formula''), or a chemical name (1,1,1,-trichloroethane). The 
hazard warning is a brief statement of the hazardous effects of the 
chemical (``flammable,'' ``causes lung damage''). Labels frequently 
contain other information, such as precautionary measures (``do not use 
near open flame''), but this information is provided voluntarily and is 
not required by the rule. Labels must be legible, and prominently 
displayed. There are no specific requirements for size or color, or any 
specified text.
    With these requirements in mind, the compliance officer will be 
looking for the following types of information to ensure that labeling 
will be properly implemented in your facility:
    1. Designation of person(s) responsible for ensuring labeling of in-
plant containers;
    2. Designation of person(s) responsible for ensuring labeling of any 
shipped containers;
    3. Description of labeling system(s) used;
    4. Description of written alternatives to labeling of in-plant 
containers (if used); and,
    5. Procedures to review and update label information when necessary.
    Employers that are purchasing and using hazardous chemicals--rather 
than producing or distributing them--will primarily be concerned with 
ensuring that every purchased container is labeled. If materials are 
transferred into other containers, the employer must ensure that these 
are labeled as well, unless they fall under the portable container 
exemption (paragraph (f)(7) of this section). In terms of labeling 
systems, you can simply choose to use the labels provided by your 
suppliers on the containers. These will generally be verbal text labels, 
and do not usually include numerical rating systems or symbols that 
require special training. The most important thing to remember is that 
this is a continuing duty--all in-plant containers of hazardous 
chemicals must always be labeled. Therefore, it is important to 
designate someone to be responsible for ensuring that the labels are 
maintained as required on the containers in your facility, and that 
newly purchased materials are checked for labels prior to use.

[[Page 481]]

                     B. Material Safety Data Sheets

    Chemical manufacturers and importers are required to obtain or 
develop a material safety data sheet for each hazardous chemical they 
produce or import. Distributors are responsible for ensuring that their 
customers are provided a copy of these MSDSs. Employers must have an 
MSDS for each hazardous chemical which they use. Employers may rely on 
the information received from their suppliers. The specific requirements 
for material safety data sheets are in paragraph (g) of this section.
    There is no specified format for the MSDS under the rule, although 
there are specific information requirements. OSHA has developed a non-
mandatory format, OSHA Form 174, which may be used by chemical 
manufacturers and importers to comply with the rule. The MSDS must be in 
English. You are entitled to receive from your supplier a data sheet 
which includes all of the information required under the rule. If you do 
not receive one automatically, you should request one. If you receive 
one that is obviously inadequate, with, for example, blank spaces that 
are not completed, you should request an appropriately completed one. If 
your request for a data sheet or for a corrected data sheet does not 
produce the information needed, you should contact your local OSHA Area 
Office for assistance in obtaining the MSDS.
    The role of MSDSs under the rule is to provide detailed information 
on each hazardous chemical, including its potential hazardous effects, 
its physical and chemical characteristics, and recommendations for 
appropriate protective measures. This information should be useful to 
you as the employer responsible for designing protective programs, as 
well as to the workers. If you are not familiar with material safety 
data sheets and with chemical terminology, you may need to learn to use 
them yourself. A glossary of MSDS terms may be helpful in this regard. 
Generally speaking, most employers using hazardous chemicals will 
primarily be concerned with MSDS information regarding hazardous effects 
and recommended protective measures. Focus on the sections of the MSDS 
that are applicable to your situation.
    MSDSs must be readily accessible to employees when they are in their 
work areas during their workshifts. This may be accomplished in many 
different ways. You must decide what is appropriate for your particular 
workplace. Some employers keep the MSDSs in a binder in a central 
location (e.g., in the pick-up truck on a construction site). Others, 
particularly in workplaces with large numbers of chemicals, computerize 
the information and provide access through terminals. As long as 
employees can get the information when they need it, any approach may be 
used. The employees must have access to the MSDSs themselves--simply 
having a system where the information can be read to them over the phone 
is only permitted under the mobile worksite provision, paragraph (g)(9) 
of this section, when employees must travel between workplaces during 
the shift. In this situation, they have access to the MSDSs prior to 
leaving the primary worksite, and when they return, so the telephone 
system is simply an emergency arrangement.
    In order to ensure that you have a current MSDS for each chemical in 
the plant as required, and that employee access is provided, the 
compliance officers will be looking for the following types of 
information in your written program:
    1. Designation of person(s) responsible for obtaining and 
maintaining the MSDSs;
    2. How such sheets are to be maintained in the workplace (e.g., in 
notebooks in the work area(s) or in a computer with terminal access), 
and how employees can obtain access to them when they are in their work 
area during the work shift;
    3. Procedures to follow when the MSDS is not received at the time of 
the first shipment;
    4. For producers, procedures to update the MSDS when new and 
significant health information is found; and,
    5. Description of alternatives to actual data sheets in the 
workplace, if used.
    For employers using hazardous chemicals, the most important aspect 
of the written program in terms of MSDSs is to ensure that someone is 
responsible for obtaining and maintaining the MSDSs for every hazardous 
chemical in the workplace. The list of hazardous chemicals required to 
be maintained as part of the written program will serve as an inventory. 
As new chemicals are purchased, the list should be updated. Many 
companies have found it convenient to include on their purchase orders 
the name and address of the person designated in their company to 
receive MSDSs.

                  C. Employee Information and Training

    Each employee who may be ``exposed'' to hazardous chemicals when 
working must be provided information and trained prior to initial 
assignment to work with a hazardous chemical, and whenever the hazard 
changes. ``Exposure'' or ``exposed'' under the rule means that ``an 
employee is subjected to a hazardous chemical in the course of 
employment through any route of entry (inhalation, ingestion, skin 
contact or absorption, etc.) and includes potential (e.g., accidental or 
possible) exposure.'' See paragraph (h) of this section for specific 
requirements. Information and training may be done either by individual 
chemical, or by categories of hazards (such as flammability or 
carcinogenicity). If there are only a few chemicals in the workplace, 
then you may want to discuss each one individually. Where there are 
large numbers of chemicals, or the chemicals change

[[Page 482]]

frequently, you will probably want to train generally based on the 
hazard categories (e.g., flammable liquids, corrosive materials, 
carcinogens). Employees will have access to the substance-specific 
information on the labels and MSDSs.
    Information and training is a critical part of the hazard 
communication program. Information regarding hazards and protective 
measures are provided to workers through written labels and material 
safety data sheets. However, through effective information and training, 
workers will learn to read and understand such information, determine 
how it can be obtained and used in their own workplaces, and understand 
the risks of exposure to the chemicals in their workplaces as well as 
the ways to protect themselves. A properly conducted training program 
will ensure comprehension and understanding. It is not sufficient to 
either just read material to the workers, or simply hand them material 
to read. You want to create a climate where workers feel free to ask 
questions. This will help you to ensure that the information is 
understood. You must always remember that the underlying purpose of the 
HCS is to reduce the incidence of chemical source illnesses and 
injuries. This will be accomplished by modifying behavior through the 
provision of hazard information and information about protective 
measures. If your program works, you and your workers will better 
understand the chemical hazards within the workplace. The procedures you 
establish regarding, for example, purchasing, storage, and handling of 
these chemicals will improve, and thereby reduce the risks posed to 
employees exposed to the chemical hazards involved. Furthermore, your 
workers' comprehension will also be increased, and proper work practices 
will be followed in your workplace.
    If you are going to do the training yourself, you will have to 
understand the material and be prepared to motivate the workers to 
learn. This is not always an easy task, but the benefits are worth the 
effort. More information regarding appropriate training can be found in 
OSHA Publication No. 2254 which contains voluntary training guidelines 
prepared by OSHA's Training Institute. A copy of this document is 
available from OSHA's Publications Office at (202) 219-4667.
    In reviewing your written program with regard to information and 
training, the following items need to be considered:
    1. Designation of person(s) responsible for conducting training;
    2. Format of the program to be used (audiovisuals, classroom 
instruction, etc.);
    3. Elements of the training program (should be consistent with the 
elements in paragraph (h) of this section); and,
    4. Procedure to train new employees at the time of their initial 
assignment to work with a hazardous chemical, and to train employees 
when a new hazard is introduced into the workplace.
    The written program should provide enough details about the 
employer's plans in this area to assess whether or not a good faith 
effort is being made to train employees. OSHA does not expect that every 
worker will be able to recite all of the information about each chemical 
in the workplace. In general, the most important aspects of training 
under the HCS are to ensure that employees are aware that they are 
exposed to hazardous chemicals, that they know how to read and use 
labels and material safety data sheets, and that, as a consequence of 
learning this information, they are following the appropriate protective 
measures established by the employer. OSHA compliance officers will be 
talking to employees to determine if they have received training, if 
they know they are exposed to hazardous chemicals, and if they know 
where to obtain substance-specific information on labels and MSDSs.
    The rule does not require employers to maintain records of employee 
training, but many employers choose to do so. This may help you monitor 
your own program to ensure that all employees are appropriately trained. 
If you already have a training program, you may simply have to 
supplement it with whatever additional information is required under the 
HCS. For example, construction employers that are already in compliance 
with the construction training standard (29 CFR 1926.21) will have 
little extra training to do.
    An employer can provide employees information and training through 
whatever means are found appropriate and protective. Although there 
would always have to be some training on-site (such as informing 
employees of the location and availability of the written program and 
MSDSs), employee training may be satisfied in part by general training 
about the requirements of the HCS and about chemical hazards on the job 
which is provided by, for example, trade associations, unions, colleges, 
and professional schools. In addition, previous training, education and 
experience of a worker may relieve the employer of some of the burdens 
of informing and training that worker. Regardless of the method relied 
upon, however, the employer is always ultimately responsible for 
ensuring that employees are adequately trained. If the compliance 
officer finds that the training is deficient, the employer will be cited 
for the deficiency regardless of who actually provided the training on 
behalf of the employer.

                          D. Other Requirements

    In addition to these specific items, compliance officers will also 
be asking the following questions in assessing the adequacy of the 
program:

[[Page 483]]

    Does a list of the hazardous chemicals exist in each work area or at 
a central location?
    Are methods the employer will use to inform employees of the hazards 
of non-routine tasks outlined?
    Are employees informed of the hazards associated with chemicals 
contained in unlabeled pipes in their work areas?
    On multi-employer worksites, has the employer provided other 
employers with information about labeling systems and precautionary 
measures where the other employers have employees exposed to the initial 
employer's chemicals?
    Is the written program made available to employees and their 
designated representatives?
    If your program adequately addresses the means of communicating 
information to employees in your workplace, and provides answers to the 
basic questions outlined above, it will be found to be in compliance 
with the rule.

                       5. Checklist for Compliance

    The following checklist will help to ensure you are in compliance 
with the rule:
Obtained a copy of the rule. --------
Read and understood the requirements. --------
Assigned responsibility for tasks. --------
Prepared an inventory of chemicals. --------
Ensured containers are labeled. --------
Obtained MSDS for each chemical. --------
Prepared written program. --------
Made MSDSs available to workers. --------
Conducted training of workers. --------
Established procedures to maintain current program. --------
Established procedures to evaluate effectiveness. --------

                          6. Further Assistance

    If you have a question regarding compliance with the HCS, you should 
contact your local OSHA Area Office for assistance. In addition, each 
OSHA Regional Office has a Hazard Communication Coordinator who can 
answer your questions. Free consultation services are also available to 
assist employers, and information regarding these services can be 
obtained through the Area and Regional offices as well.
    The telephone number for the OSHA office closest to you should be 
listed in your local telephone directory. If you are not able to obtain 
this information, you may contact OSHA's Office of Information and 
Consumer Affairs at (202) 219-8151 for further assistance in identifying 
the appropriate contacts.

[59 FR 6170, Feb. 9, 1994, as amended at 59 FR 17479, Apr. 13, 1994; 59 
FR 65948, Dec. 22, 1994; 61 FR 9245, Mar. 7. 1996]