6160 Federal Register / Vol. 62, No. 28 / Tuesday, February 11, 1997 / Proposed Rules

40 CFR Part 52

[AK14–7102b; FRL–5686–3]

Approval and Promulgation of State

Implementation Plans: Alaska

AGENCY: Environmental Protection

Agency (EPA).

ACTION: Proposed rule.

SUMMARY: The EPA proposes to approve

the State Implementation Plan (SIP)

revision submitted by the State of

Alaska for the purpose of approving the

1990 base year carbon monoxide

emission inventory portion of the

Anchorage and Fairbanks, Alaska

carbon monoxide (CO) State

Implementation Plan (SIP) submitted on

December 29, 1993, by the State of

Alaska Department of Environmental

Conservation (ADEC). The SIP revision

was submitted by the State to satisfy

certain Federal Clean Air Act

requirements for the purpose of bringing

about the attainment of the national

ambient air quality standard (NAAQS)

for CO. In the Final Rules Section of this

Federal Register, the EPA is approving

the State’s SIP revision as a direct final

rule without prior proposal because the

Agency views this as a noncontroversial

revision amendment and anticipates no

adverse comments. A detailed rationale

for the approval is set forth in the direct

final rule. If no adverse comments are

received in response to this proposed

rule, no further activity is contemplated

in relation to this rule. If the EPA

receives adverse comments, the direct

final rule will be withdrawn and all

public comments received will be

addressed in a subsequent final rule

based on this proposed rule. The EPA

will not institute a second comment

period on this action.

DATES: Comments on this proposed rule

must be received in writing by March

13, 1997.

ADDRESSES: Written comments should

be addressed to Montel Livingston,

Environmental Protection Specialist

(OAQ–107), Office of Air Quality, at the

EPA Regional Office listed below.

Copies of the documents relevant to this

proposed rule are available for public

inspection during normal business

hours at the following locations. The

interested persons wanting to examine

these documents should make an

appointment with the appropriate office

at least 24 hours before the visiting day.

Environmental Protection Agency,

Region 10, Office of Air Quality, 1200

6th Avenue, Seattle, WA 98101.

Alaska Department of Environmental

Conservation, 410 Willoughby, Suite

105, Juneau, Alaska 99801–1795.

FOR FURTHER INFORMATION CONTACT: John

Pavitt, EPA Region 10, Alaska

Operations Office (AOO/A), 222 W. 7th

Avenue, Box #19, Anchorage, AK

99513–7588, (907) 271–5083.

SUPPLEMENTARY INFORMATION: See the

information provided in the Direct Final

action which is located in the Rules

Section of this Federal Register.

Dated: January 28, 1997.

Chuck Clarke,

Regional Administrator.

[FR Doc. 97–3364 Filed 2–10–97; 8:45 am]

BILLING CODE 6560–50–P

40 CFR Part 721

[OPPTS–50581B; FRL–5580–8]

Proposed Revocation of Significant

New Use Rules for Certain Chemical

Substances

AGENCY: Environmental Protection

Agency (EPA).

ACTION: Proposed rule.

SUMMARY: EPA is proposing to revoke

two significant new use rules (SNUR)

promulgated under section 5(a)(2) of the

Toxic Substances Control Act (TSCA)

for certain chemical substances based

on new toxicity data. Based on the data

the Agency determined that it could no

longer support a finding that activities

not described in the TSCA section 5(e)

consent order may result in significant

changes in human exposure.

DATES: Written comments must be

received by March 13, 1997.

ADDRESSES: Each comment must bear

the docket control number OPPTS–

50581B. All comments should be sent in

triplicate to: OPPT Document Control

Officer (7407), Office of Pollution

Prevention and Toxics, Environmental

Protection Agency, 401 M Street, SW.,

Room G–099, East Tower, Washington,

DC 20460.

All comments which are claimed

confidential must be clearly marked as

such. Three additional sanitized copies

of any comments containing

confidential business information (CBI)

must also be submitted. Nonconfidential

versions of comments on this rule will

be placed in the rulemaking record and

will be available for public inspection.

Unit III of this preamble contains

additional information on submitting

comments containing CBI.

Comments and data may also be

submitted electronically by sending

electronic mail (e-mail) to: opptncic@epamail.epa.gov. Electronic

comments must be submitted as an

ASCII file avoiding the use of special

characters and any form of encryption.

Comments and data will also be

accepted on disks in WordPerfect 5.1

file format or ASCII file format. All

comments and data in electronic form

must be identified by (OPPTS–50581B).

No CBI should be submitted through email. Electronic comment on this notice

may be filed online at many Federal

Depository Libraries. Additional

information on electronic submissions

can be found under Unit IV of this

preamble.

FOR FURTHER INFORMATION CONTACT:

Susan B. Hazen, Director,

Environmental Assistance Division

(7408), Office of Pollution Prevention

and Toxics, Environmental Protection

Agency, Rm. E–543A, 401 M St., SW.,

Washington, DC 20460; telephone: (202)

554–1404; TDD: (202) 554–0551; e-mail:

TSCA-Hotline@epamail.epa.gov.

SUPPLEMENTARY INFORMATION: In the

Federal Register of October 31, 1990 (55

FR 45994) EPA issued a SNUR

establishing significant new uses for the

substances listed in Unit I of this

preamble. Because of additional data

EPA has received for these substances,

EPA is proposing to revoke the SNURs.

I. Proposed Revocation

EPA is proposing to revoke the

significant new use and recordkeeping

requirements for the following chemical

substances under 40 CFR part 721,

subpart E. In this unit, EPA provides a

brief description for the substances,

including its premanufacture notice

(PMN) number, chemical name (generic

name if the specific name is claimed as

CBI), CAS number (if assigned), basis for

the revocation of the section 5(e)

consent order for the substance, and the

CFR citation removed in the regulatory

text section of this proposed rule.

Further background information for the

substances is contained in the

rulemaking record referenced below in

Unit IV of this preamble.

PMN Number P–89–697

Chemical name: (generic) Alkenoic acid,

trisubstituted-benzyl-disubstitutedphenyl ester.

CAS number: Not available.

Basis for revocation of SNUR: Based on

data for triethylene glycol diacrylate

which was not carcinogenic in a long

term dermal bioassay in mice and a 28-

day study for P–89–694 which

demonstrated no dermal absorption or

toxic effects by the dermal route, EPA

no longer supports the carcinogenicity

concern for this substance. Based on

that assessment EPA determined that it

could no longer support an

unreasonable risk finding under section

5(e) of TSCA and is revoking the

consent order. EPA can no longer make