Document ID: EPA-HQ-OPPT-2009-0867-0001
Agency: epa
Document Type: Notice
Title: Proposed Acute Exposure Guideline Levels for Hazardous Substances
Posted Date: 2010-07-28T04:00Z

[Federal Register: July 28, 2010 (Volume 75, Number 144)]
[Notices]               
[Page 44249-44250]
From the Federal Register Online via GPO Access [wais.access.gpo.gov]
[DOCID:fr28jy10-62]                         

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ENVIRONMENTAL PROTECTION AGENCY

[EPA-HQ-OPPT-2009-0867; FRL-8813-4]

 
Proposed Acute Exposure Guideline Levels for Hazardous 
Substances; Notice of Availability

AGENCY: Environmental Protection Agency (EPA).

ACTION: Notice.

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SUMMARY: The National Advisory Committee for Acute Exposure Guideline 
Levels 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 13 proposed AEGLs that are available for 
public review and comment. Comments are welcome on both the proposed 
AEGLs and their Technical Support Documents placed in the docket.

DATES: Comments must be received on or before August 27, 2010.

ADDRESSES: Submit your comments, identified by docket identification 
(ID) number EPA-HQ-OPPT-2009-0867, 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, Rm. 6428, 1201 Constitution Ave., NW., Washington, DC. Attention: 
Docket ID Number EPA-HQ-OPPT-2009-0867. 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-
2009-0867. 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.
    Docket: All documents in the docket are listed in the docket index 
available at http://www.regulations.gov. 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 
legal 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 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.
    For general information contact: The TSCA-Hotline, ABVI-Goodwill, 
422 South Clinton Ave., Rochester, NY 14620; telephone number: (202) 
554-1404; e-mail address: TSCA-Hotline@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 AEGLs and their 
Technical Support Documents. This action may be of particular interest 
to anyone who may be affected if the AEGLs 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 AEGLs 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

[[Page 44250]]

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), renamed the Office of Chemical Safety and Pollution Prevention 
(OCSPP), as of April 22, 2010, provided notice on 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 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 AEGLs and underlying supporting documents for 13 
hazardous substances. These AEGLs represent the 13\th\ set of exposure 
levels proposed and published by the NAC/AEGL Committee. These 13 sets 
of AEGLs cover 261 hazardous substances. Background information on the 
AEGL Program may be found in these earlier Federal Register notices, on 
regulations.gov, or the AEGL webpage (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 AEGLs. Although the Interim 
AEGLs will be available to Federal, State, and local agencies and to 
organizations in the private sector as biological reference values, a 
National Academies subcommittee for AEGLs will serve as a peer review 
of the Interim AEGLs and as the final arbiter in the resolution of 
issues regarding the AEGLs, and the data and basic methodology used for 
setting AEGLs. Following concurrence, Final AEGLs will be published 
under the auspices of the NAS.

III. List of Hazardous Substances

    On behalf of the NAC/AEGL Committee, EPA is providing an 
opportunity for public comment on the proposed AEGLs for the 13 
hazardous substances identified in the table in this unit. Technical 
Support Documents are available in the docket for this notice. See 
ADDRESSES for docket information.

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               Chemical Name                         CAS Number
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Cadmium                                     7440-43-9
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Calcium cyanide                             592-01-8
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Dimethyl phosphite                          868-85-9
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Gasoline--automotive                        86290-81-5
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Mercury vapor                               7439-97-6
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Perchloryl fluoride                         7616-94-6
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Perfluoroisobutylene                        382-21-8
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Phosgene                                    75-44-5
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Phosgene oxime                              1794-86-1
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Potassium cyanide                           151-50-8
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Sodium cyanide                              143-33-9
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Tellurium hexafluoride                      7783-80-4
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Trimethylphosphite                          121-45-9
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List of Subjects

     Environmental protection, Acute Exposure Guideline Levels, 
Hazardous substances, Health.

    Dated: July 21, 2010.
Stephen A. Owens,
Assistant Administrator, Office of Chemical Safety and Pollution 
Prevention.

[FR Doc. 2010-18546 Filed 7-27-10; 8:45 am]
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