[Federal Register: April 16, 2008 (Volume 73, Number 74)]
[Notices]
[Page 20636-20638]
From the Federal Register Online via GPO Access [wais.access.gpo.gov]
[DOCID:fr16ap08-52]
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ENVIRONMENTAL PROTECTION AGENCY
[EPA-HQ-OPPT-2008-0026; FRL-8353-4]
National Advisory Committee for Acute Exposure Guideline Levels
for Hazardous Substances; Proposed AEGL Values; Notice of Availability
AGENCY: Environmental Protection Agency (EPA).
ACTION: Notice.
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SUMMARY: The National Advisory Committee for Acute Exposure Guideline
Levels (AEGLs) for Hazardous Substances (NAC/AEGL Committee) is
developing AEGLs values on an ongoing basis to provide Federal, State,
and local agencies with information on short-term exposures to
hazardous chemicals. This notice provides a list of 62 hazardous
chemicals for proposed AEGL values that are available for public review
and comment. Comments are welcome on both the proposed AEGL values and
the Technical Support Documents placed in the public version of the
official docket.
DATES: Comments must be received on or before May 16, 2008.
ADDRESSES: Submit your comments, identified by docket identification
(ID) number EPA-HQ-OPPT-2008-0026, by one of the following methods:
Federal eRulemaking Portal: http://www.regulations.gov.
Follow the on-line instructions for submitting comments.
Mail: Document Control Office (7407M), Office of Pollution
Prevention and Toxics (OPPT), Environmental Protection Agency, 1200
Pennsylvania Ave., NW., Washington, DC 20460-0001.
Hand Delivery: OPPT Document Control Office (DCO), EPA
East Bldg., Rm. 6428, 1201 Constitution Ave., NW., Washington, DC.
Attention: Docket ID Number EPA-HQ-OPPT-2008-0026. The DCO is open from
8 a.m. to 4 p.m., Monday through Friday, excluding legal holidays. The
telephone number for the DCO is (202) 564-8930. Such deliveries are
only accepted during the DCO's normal hours of operation, and special
arrangements should be made for deliveries of boxed information.
Instructions: Direct your comments to docket ID number EPA-HQ-OPPT-
2008-0026. EPA's policy is that all comments received will be included
in the docket without change and may be made available on-line at
http://www.regulations.gov, including any personal information
provided, unless the comment includes information claimed to be
Confidential Business Information (CBI) or other information whose
disclosure is restricted by statute. Do not submit information that you
consider to be CBI or otherwise protected through regulations.gov or e-
mail. The regulations.gov website is an ``anonymous access'' system,
which means EPA will not know your identity or contact information
unless you provide it in the body of your comment. If you send an e-
mail comment directly to EPA without going through regulations.gov,
your e-mail address will be automatically captured and included as part
of the comment that is placed in the docket and made available on the
Internet. If you submit an electronic comment, EPA recommends that you
include your name and other contact information in the body of your
comment and with any disk or CD-ROM you submit. If EPA cannot read your
comment due to technical difficulties and cannot contact you for
clarification, EPA may not be able to consider your comment. Electronic
files should avoid the use of special characters, any form of
encryption, and be free of any defects or viruses. For additional
information about EPA's public docket, visit the EPA Docket Center
homepage at http://www.epa.gov/epahome/dockets.htm.
Docket: All documents in the docket are listed in the docket index
available in regulations.gov. To access the electronic docket, go to
http://www.regulations.gov, select ``Advanced Search,'' then ``Docket
Search.'' Insert the docket ID number where indicated and select the
``Submit'' button. Follow the instructions on the regulations.gov
website to view the docket index or access available documents.
Although listed in the index, some information is not publicly
available, e.g., CBI or other information whose disclosure is
restricted by statute. Certain other material, such as copyrighted
material, will be publicly available only in hard copy. Publicly
available docket materials are available electronically at
[[Page 20637]]
http://www.regulations.gov, or, if only available in hard copy, at the
OPPT Docket. The OPPT Docket is located in the EPA Docket Center (EPA/
DC) at Rm. 3334, EPA West Bldg., 1301 Constitution Ave., NW.,
Washington, DC. The EPA/DC Public Reading Room hours of operation are
8:30 a.m. to 4:30 p.m., Monday through Friday, excluding Federal
holidays. The telephone number of the EPA/DC Public Reading Room is
(202) 566-1744, and the telephone number for the OPPT Docket is (202)
566-0280. Docket visitors are required to show photographic
identification, pass through a metal detector, and sign the EPA visitor
log. All visitor bags are processed through an X-ray machine and
subject to search. Visitors will be provided an EPA/DC badge that must
be visible at all times in the building and returned upon departure.
FOR FURTHER INFORMATION CONTACT: For general information contact: Colby
Lintner, Regulatory Coordinator, Environmental Assistance Division
(7408M), Office of Pollution Prevention and Toxics, Environmental
Protection Agency, 1200 Pennsylvania Ave., NW., Washington, DC 20460-
0001; telephone number: (202) 554-1404; e-mail address: TSCA-
Hotline@epa.gov.
For technical information contact: Paul S. Tobin, Designated
Federal Officer (DFO), Office of Pollution Prevention and Toxics
(7403M), Office of Pollution Prevention and Toxics , Environmental
Protection Agency, 1200 Pennsylvania Ave., NW., Washington, DC 20460-
0001; telephone number: (202) 564-8557; e-mail address:
tobin.paul@epa.gov.
SUPPLEMENTARY INFORMATION:
I. General Information
A. Does this Action Apply to Me?
This action is directed to the general public to provide an
opportunity for review and comment on proposed AEGL values and their
supporting scientific rationale. This action may be of particular
interest to anyone who may be affected if the AEGL values are adopted
by government agencies for emergency planning, prevention, or response
programs, such as EPAs Risk Management Program under the Clean Air Act
and Amendments Section 112r. It is possible that other Federal agencies
besides EPA, as well as State and local agencies and private
organizations, may adopt the AEGL values for their programs. As such,
the Agency has not attempted to describe all the specific entities that
may be affected by this action. If you have any questions regarding the
applicability of this action to a particular entity, consult the DFO
listed under FOR FURTHER INFORMATION CONTACT.
B. What Should I Consider as I Prepare My Comments for EPA?
1. Submitting CBI. Do not submit this information to EPA through
regulations.gov or e-mail. Clearly mark the part or all of the
information that you claim to be CBI. For CBI information in a disk or
CD-ROM that you mail to EPA, mark the outside of the disk or CD-ROM
that you mail to EPA, mark the outside of the disk or CD-ROM as CBI and
then identify electronically within the disk or CD-ROM the specific
information that is claimed as CBI. In addition to one complete version
of the comment that includes information claimed as CBI, a copy of the
comment that does not contain the information claimed as CBI must be
submitted for inclusion in the public docket. Information so marked
will not be disclosed except in accordance with procedures set forth in
40 CFR part 2.
2. Tips for preparing your comments. When submitting comments,
remember to:
i. Identify the document by docket ID number and other identifying
information (subject heading, Federal Register date and page number).
ii. Follow directions. The Agency may ask you to respond to
specific questions or organize comments by referencing a Code of
Federal Regulations (CFR) part or section number.
iii. Explain why you agree or disagree; suggest alternatives and
substitute language for your requested changes.
iv. Describe any assumptions and provide any technical information
and/or data that you used.
v. If you estimate potential costs or burdens, explain how you
arrived at your estimate in sufficient detail to allow for it to be
reproduced.
vi. Provide specific examples to illustrate your concerns and
suggest alternatives.
vii. Explain your views as clearly as possible, avoiding the use of
profanity or personal threats.
viii. Make sure to submit your comments by the comment period
deadline identified.
II. What Action is the Agency Taking?
EPA's Office of Prevention, Pesticides and Toxic Substances (OPPTS)
provided notice in the Federal Register of October 31, 1995 (60 FR
55376) (FRL-4987-3) of the establishment of the NAC/AEGL Committee with
the stated charter objective as ``the efficient and effective
development of AEGLs and the preparation of supplementary qualitative
information on the hazardous substances for Federal, State, and Local
agencies and organizations in the private sector concerned with
[chemical] emergency planning, prevention, and response.'' The NAC/AEGL
Committee is a discretionary Federal advisory committee formed with the
intent to develop AEGL values for hazardous chemicals through the
combined efforts of stakeholder members from both the public and
private sectors in a cost-effective approach that avoids duplication of
efforts and provides uniform values, while employing the most
scientifically sound methods available.
This action provides notice of availability, for public review and
comment, of proposed AEGL values and underlying supporting documents
for 62 hazardous chemicals. These AEGL values represent the 11\th\ set
of exposure levels proposed and published by the NAC/AEGL Committee.
These 11 sets of AEGL values cover 239 hazardous chemicals. Background
information on the AEGL Program may be found in the earlier Federal
Register notices available in regulations.gov or on the AEGL website
(http://www.epa.gov/oppt/aegl).
Following public review and comment, the NAC/AEGL Committee will
reconvene to consider relevant comments, data, and information that may
have an impact on the NAC/AEGL Committee's position and will again seek
consensus for the establishment of interim AEGL values. Although the
interim AEGL values will be available to Federal, State, and local
agencies and to organizations in the private sector as biological
reference values, it is intended to have them reviewed by a
subcommittee of the National Academies (NAS). The NAS subcommittee will
serve as a peer review of the interim AEGL values and as the final
arbiter in the resolution of issues regarding the AEGL values, and the
data and basic methodology used for setting AEGL values. Following
concurrence, final AEGL values will be published under the auspices of
NAS.
III. List of Chemicals
On behalf of the NAC/AEGL Committee, EPA is providing an
opportunity for public comment on the proposed AEGL values for the 62
hazardous chemicals identified in the table in this unit. Technical
Support Documents and key references may be obtained in the Docket
described under ADDRESSES.
[[Page 20638]]
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Chemical Name CAS Number
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1,2-Dibromoethane 106-93-4
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2-Ethylhexyl chloroformate 24468-13-1
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Acrylonitrile 107-13-1
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Allyl chloride 107-05-1
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Allyl chloroformate 2937-50-0
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Allyl trichlorosilane 107-37-9
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Amyl trichlorosilane 107-72-2
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Benzyl chloroformate 501-53-1
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Boron tribromide 10294-33-4
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Bromine chloride 13863-41-7
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Butyl trichlorosilane 7521-80-4
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BZ (3-quinuclidinyl benzilate) 6581-06-2
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Carbonyl fluoride 353-50-4
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Carbonyl sulfide 463-58-1
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Chlorobenzene 108-90-7
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Chloromethyltrichlorosilane 1558-25-4
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Chloropicrin 76-06-2
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Chlorosulfonic acid 7790-94-5
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Chlorotrifluroethylene 79-38-9
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Dichlorosilane 4109-96-0
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Diethyldichlorosilane 1719-53-5
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Diketene 674-82-8
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Dimethylamine 124-40-3
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Dimethylchlorosilane 1066-35-9
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Diphenyldichlorosilane 80-10-4
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Docecyltrichlorosilane 4484-72-4
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Ethyl chloroformate 541-41-3
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Ethyl chlorothioformate 2941-64-2
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Ethylamine 75-04-7
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Ethylene chlorohydrin 107-07-3
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Ethyltrichlorosilane 115-21-9
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Hexyltrichlorosilane 928-65-4
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Isobutyl chloroformate 543-27-1
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Isopropyl chloroformate 108-23-6
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Methacrylaldehyde 78-85-3
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Methanesulfonyl chloride 124-63-0
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Methyl amine 74-89-5
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Methyl chloroformate 79-22-1
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Methyl vinyl ketone 78-94-4
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Methylvinyldichlorosilane 124-70-9
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n-Butyl chloroformate 592-34-7
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Nonyltrichlorosilane 5283-67-0
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Octadecyltrichlorosilane 112-04-9
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Octyltrichlorosilane 5283-66-9
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Osmium tetroxide 20816-12-0
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Oxygen difluoride 7783-41-7
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Pentaborane 19624-22-7
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Phenyl chloroformate 1885-14-9
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Propyl chloroformate 109-61-5
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Propyltrichlorosilane 141-57-1
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sec-Butyl chloroformate 17462-58-7
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Silicon tetrachloride 10026-04-7
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Silicon tetrafluoride 7783-61-1
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Stibine (Antimony hydride) 7803-52-3
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Sulfuryl fluoride 2699-79-8
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Tetrafluoroethylene 116-14-3
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Thionyl chloride 7719-09-7
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Trichloro(dichlorophenyl)silane 27137-85-5
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Trichlorophenylsilane 98-13-5
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Trichlorosilane 10025-78-2
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Trimethylamine 75-50-3
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Vinyltrichlorosilane 75-94-5
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List of Subjects
Environmental protection, Acute Exposure Guideline Levels,
Hazardous substances.
Dated: April 10, 2008.
James B. Gulliford,
Assistant Administrator, Office of Prevention, Pesticides and Toxic
Substances.
[FR Doc. E8-8184 Filed 4-15-08; 8:45 am]
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