[Federal Register: September 19, 2007 (Volume 72, Number 181)]
[Notices]
[Page 53577-53579]
From the Federal Register Online via GPO Access [wais.access.gpo.gov]
[DOCID:fr19se07-81]
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ENVIRONMENTAL PROTECTION AGENCY
[EPA-HQ-OPPT-2006-0832; FRL-8132-6]
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 on an ongoing basis to provide Federal, State, and
local agencies with information on short-term exposures to hazardous
substances. This notice provides a list of 37 hazardous substances for
Proposed AEGL values, which are available for public review and
comment. Comments are welcome on both the Proposed AEGL values and the
Technical Support Documents in the public docket.
DATES: Comments must be received on or before October 19, 2007.
ADDRESSES: Submit your comments, identified by docket identification
(ID) number EPA-HQ-OPPT-2006-0832, 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-2006-0832. 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-
2006-0832. 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 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
[[Page 53578]]
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
(7406M), 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 EPA's 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)
published in the Federal Register of October 31, 1995 (Ref. 1) a notice
establishing the NAC/AEGL Committee with the stated charter objective
of ``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 AEGLs for
hazardous substances 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 37 hazardous substances. These values represent the 10\th\ set of
exposure levels proposed and published by the NAC/AEGL Committee. For
the previous 9 Federal Register notices (Refs. 2-10) that proposed
AEGLs values for 140 hazardous substances, see Unit IV. These 9 Federal
Register notices were published to provide an opportunity for public
review and comment. Background information on the AEGL Program may be
found in these earlier Federal Register notices 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 (NA). The NA 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
NA.
III. List of Hazardous Substances
On behalf of the NAC/AEGL Committee, EPA is providing an
opportunity for public comment on the Proposed AEGL values for the 37
hazardous substances identified in the table in this unit. Technical
Support Documents and key literature references are in the public
docket.
Proposed AEGL Hazardous Substances Table
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Hazardous Substances Name CAS Number
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1,2,3-trimethylbenzene 526-73-8
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1,2,4-trimethylbenzene 95-63-6
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1,3,5-trimethylbenzene 108-67-8
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[[Page 53579]]
Adamsite 578-94-9
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Aluminum phosphide 20859-73-8
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Arsenic trioxide 1327-53-3
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Biphenyl 92-52-4
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bis-Chloromethyl ether 542-88-1
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Calcium phosphide 1305-99-3
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Cyclohexyl isocyanate 3173-53-3
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Diphenylchloroarsine 712-48-1
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Ethyldichloroarsine 598-14-1
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Hexafluoroacetone 684-16-2
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Hexafluoropropylene 116-15-4
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Ketene 463-51-4
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Magnesium aluminum phosphide None
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Magnesium phosphide 12057-74-8
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Methyl chlorosilane 993-00-0
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Methyl dichlorosilane 75-54-7
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Methyl t-butyl ether 1634-04-4
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Methyldichloroarsine 593-89-5
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Nitrogen mustard HN-1 bis(2- 538-07-8
chloroethyl)ethylamine
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Nitrogen mustard HN-2 bis(2- 51-75-2
chloroethyl)methyl amine
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Nitrogen mustard HN-3 tris(2- 555-77-1
chloroethyl)amine
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Phenyldichloroarsine 696-28-6
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Phenylmercaptan 108-98-5
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Potassium phosphide 20770-41-6
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Propargyl alcohol 107-19-7
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Selenium hexafluoride 7783-79-1
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Silane 7803-62-5
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Sodium phosphide 12058-85-4
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Strontium phosphide 12504-13-1
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Sulfuryl chloride 7791-25-5
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Tetramethoxy silane 681-84-5
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Trimethoxy silane 2487-90-3
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Vinyl acetate monomer 108-05-4
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Zinc phosphide 1314-84-7
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IV. References
1. EPA. Establishment of a National Advisory Committee for Acute
Exposure Guideline Levels (AEGLs) for Hazardous Substances. Federal
Register (60 FR 55376, October 31, 1995) (FRL-4987-3). Available on-
line at: http://www.epa.gov/fedrgstr.
2. EPA. National Advisory Committee for Acute Exposure Guideline
Levels for Hazardous Substances; Notices. Federal Register (62 FR
58840, October 30, 1997) (FRL-5737-3). Available on-line at: http://www.epa.gov/fedrgstr
.
3. EPA. National Advisory Committee for Acute Exposure Guideline
Levels (AEGLs) for Hazardous Substances, Proposed AEGL Values; Notice.
Federal Register (65 FR 14186, March 15, 2000) (FRL-6492-4). Available
on-line at: http://www.epa.gov/fedrgstr.
4. EPA. National Advisory Committee for Acute Exposure Guideline
Levels (AEGLs) for Hazardous Substances, Proposed AEGL Values; Notice.
Federal Register (65 FR 39264, June 23, 2000) (FRL-6591-2). Available
on-line at: http://www.epa.gov/fedrgstr.
5. EPA. National Advisory Committee for Acute Exposure Guideline
Levels(AEGLs) for Hazardous Substances; Proposed AEGL Values. Federal
Register (65 FR 77866, December 13, 2000) (FRL-6752-5). Available on-
line at: http://www.epa.gov/fedrgstr.
6. EPA. National Advisory Committee for Acute Exposure Guideline
Levels (AEGLs) for Hazardous Substances; Proposed AEGL Values. Federal
Register (66 FR 21940, May 2, 2001) (FRL-6776-3). Available on-line at:
http://www.epa.gov/fedrgstr.
7. EPA. National Advisory Committee for Acute Exposure Guideline
Levels (AEGLs) for Hazardous Substances; Proposed AEGL Values. Federal
Register (67 FR 7164, February 15, 2002) (FRL-6815-8). Available on-
line at: http://www.epa.gov/fedrgstr.
8. EPA. National Advisory Committee for Acute Exposure Guideline
Levels (AEGLs) for Hazardous Substances; Proposed AEGL Values. Federal
Register (68 FR 42710, July 18, 2003) (FRL-7189-8). Available on-line
at: http://www.epa.gov/fedrgstr.
9. EPA. National Advisory Committee for Acute Exposure Guideline
Levels (AEGLs) for Hazardous Substances; Proposed AEGL Values; Notice
of Availability. Federal Register (69 FR 54144, September 7, 2004)
(FRL-7350-2). Available on-line at: http://www.epa.gov/fedrgstr.
10. EPA. National Advisory Committee for Acute Exposure Guideline
Levels (AEGLs) for Hazardous Substances; Proposed AEGL Values; Notice
of Availability. Federal Register (71 FR 60141, October 12, 2006) (FRL-
8095-1). Available on-line at: http://www.epa.gov/fedrgstr.
List of Subjects
Environmental protection, Acute Exposure Guideline Levels (AEGLs),
Hazardous substances.
Dated: September 10, 2007.
James B. Gulliford,
Assistant Administrator, Office of Prevention, Pesticides and Toxic
Substances.
[FR Doc. E7-18479 Filed 9-18-07; 8:45 am]
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