[Federal Register Volume 71, Number 242 (Monday, December 18, 2006)]
[Proposed Rules]
[Pages 75704-75705]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: E6-21494]


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ENVIRONMENTAL PROTECTION AGENCY

 40 CFR Part 799

[EPA-HQ-OPPT-2002-0073; FRL-8109-2]
RIN 2070-AB79


 Proposed Test Rule for Certain Chemicals on the ATSDR/EPA CERCLA 
Priority List of Hazardous Substances; Extension of Comment Period

AGENCY: Environmental Protection Agency (EPA).

ACTION: Proposed rule; extension of comment period.

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SUMMARY: EPA is hereby extending the comment period for a proposed rule 
issued on October 20, 2006 (71 FR 61926) (FRL-8081-3), to require 
testing for certain chemicals on the Agency for Toxic Substances and 
Disease Registry (ATSDR)/EPA Priority List of Hazardous Substances to 
March 19, 2007. This extension is being made as a result of a request 
by a member of the public for additional time to submit comments.

DATES: Comments must be received on or before March 19, 2007. Your 
request to present oral comments must be in writing and must be 
received by EPA on or before March 19, 2007.

ADDRESSES: Follow the detailed instructions as provided under ADDRESSES 
in the Federal Register document of October 20, 2006.

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: [email protected].
     For technical information contact: Robert W. Jones, Chemical 
Control Division, Office of Pollution Prevention and Toxics (7405M), 
Environmental Protection Agency, 1200 Pennsylvania Ave., NW., 
Washington, DC 20460-0001; telephone number: (202) 564-

[[Page 75705]]

8161; e-mail address: [email protected].

SUPPLEMENTARY INFORMATION: This document extends the public comment 
period established in the Federal Register issued on October 20, 2006 
(71 FR 61926) (FRL-8081-3). In that document, EPA proposed to require 
testing for certain chemicals on the ATSDR/EPA Priority List of 
Hazardous Substances which is compiled under the Comprehensive 
Environmental Response Compensation and Liability Act (CERCLA), and 
solicited proposals for enforceable consent agreements (ECAs). EPA 
proposed the test rule under section 4(a) of the Toxic Substances 
Control Act (TSCA) that would require manufacturers (including 
importers) and processors of four chemical substances (chloroethane, 
hydrogen cyanide, methylene chloride, and sodium cyanide) to conduct 
testing for certain health effects relating to the manufacture, 
distribution in commerce, processing, use, or disposal of these 
substances. The data that would be obtained under the testing program 
are intended to be used to address health effects data needs identified 
by ATSDR and EPA for these substances, which are among the hazardous 
substances most frequently found at sites listed on the CERCLA National 
Priorities List (NPL) and which are also hazardous air pollutants 
(HAPs) under section 112 of the Clean Air Act (CAA). EPA solicited 
proposals for ECAs involving the conduct of physiologically based 
pharmacokinetics (PBPK) studies as an alternative to the testing 
proposed in the rule, as appropriate. Alternatively, if ECA proposals 
involving the conduct of PBPK studies are not received, or if received, 
are not considered by the Agency to be adequate, EPA may consider ECA 
proposals which cover some or all of the testing identified for a given 
chemical in this proposed rule.
    EPA is hereby extending the comment period on the proposed rule, 
which was set to end on December 19, 2006, to March 19, 2007. This 
extension is being made as a result of a request by a member of the 
public for additional time to submit comments.
    Please go to the proposed rule to review the details of the 
Agency's proposed action and follow the instructions provided in the 
proposed rule for how to comment. To view the electronic docket for 
this proposed rule and submit comments on-line, please go to http://www.regulations.gov. The docket identification number of this action is 
EPA-HQ-OPPT-2002-0073.

List of Subjects in 40 CFR Part 799

     Environmental protection, Chemicals, Hazardous substances, 
Laboratories, Reporting and recordkeeping requirements.


    Dated: December 12, 2006.
Susan B. Hazen,
Acting Assistant Administrator, Office of Prevention, Pesticides and 
Toxics Substances.
[FR Doc. E6-21494 Filed 12-15-06; 8:45 am]
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