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6160 Federal Register / Vol. 62, No. 28 / Tuesday, February 11, 1997 / Proposed Rules40 CFR Part 52[AK14–7102b; FRL–5686–3]Approval and Promulgation of StateImplementation Plans: AlaskaAGENCY: Environmental ProtectionAgency (EPA).ACTION: Proposed rule.SUMMARY: The EPA proposes to approvethe State Implementation Plan (SIP)revision submitted by the State ofAlaska for the purpose of approving the1990 base year carbon monoxideemission inventory portion of theAnchorage and Fairbanks, Alaskacarbon monoxide (CO) StateImplementation Plan (SIP) submitted onDecember 29, 1993, by the State ofAlaska Department of EnvironmentalConservation (ADEC). The SIP revisionwas submitted by the State to satisfycertain Federal Clean Air Actrequirements for the purpose of bringingabout the attainment of the nationalambient air quality standard (NAAQS)for CO. In the Final Rules Section of thisFederal Register, the EPA is approvingthe State’s SIP revision as a direct finalrule without prior proposal because theAgency views this as a noncontroversialrevision amendment and anticipates noadverse comments. A detailed rationalefor the approval is set forth in the directfinal rule. If no adverse comments arereceived in response to this proposedrule, no further activity is contemplatedin relation to this rule. If the EPAreceives adverse comments, the directfinal rule will be withdrawn and allpublic comments received will beaddressed in a subsequent final rulebased on this proposed rule. The EPAwill not institute a second commentperiod on this action.DATES: Comments on this proposed rulemust be received in writing by March13, 1997.ADDRESSES: Written comments shouldbe addressed to Montel Livingston,Environmental Protection Specialist(OAQ–107), Office of Air Quality, at theEPA Regional Office listed below.Copies of the documents relevant to thisproposed rule are available for publicinspection during normal businesshours at the following locations. Theinterested persons wanting to examinethese documents should make anappointment with the appropriate officeat least 24 hours before the visiting day.Environmental Protection Agency,Region 10, Office of Air Quality, 12006th Avenue, Seattle, WA 98101.Alaska Department of EnvironmentalConservation, 410 Willoughby, Suite105, Juneau, Alaska 99801–1795.FOR FURTHER INFORMATION CONTACT: JohnPavitt, EPA Region 10, AlaskaOperations Office (AOO/A), 222 W. 7thAvenue, Box #19, Anchorage, AK99513–7588, (907) 271–5083.SUPPLEMENTARY INFORMATION: See theinformation provided in the Direct Finalaction which is located in the RulesSection 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–P40 CFR Part 721[OPPTS–50581B; FRL–5580–8]Proposed Revocation of SignificantNew Use Rules for Certain ChemicalSubstancesAGENCY: Environmental ProtectionAgency (EPA).ACTION: Proposed rule.SUMMARY: EPA is proposing to revoketwo significant new use rules (SNUR)promulgated under section 5(a)(2) of theToxic Substances Control Act (TSCA)for certain chemical substances basedon new toxicity data. Based on the datathe Agency determined that it could nolonger support a finding that activitiesnot described in the TSCA section 5(e)consent order may result in significantchanges in human exposure.DATES: Written comments must bereceived by March 13, 1997.ADDRESSES: Each comment must bearthe docket control number OPPTS–50581B. All comments should be sent intriplicate to: OPPT Document ControlOfficer (7407), Office of PollutionPrevention and Toxics, EnvironmentalProtection Agency, 401 M Street, SW.,Room G–099, East Tower, Washington,DC 20460.All comments which are claimedconfidential must be clearly marked assuch. Three additional sanitized copiesof any comments containingconfidential business information (CBI)must also be submitted. Nonconfidentialversions of comments on this rule willbe placed in the rulemaking record andwill be available for public inspection.Unit III of this preamble containsadditional information on submittingcomments containing CBI.Comments and data may also besubmitted electronically by sendingelectronic mail (e-mail) to: opptncic@epamail.epa.gov.Electroniccomments must be submitted as anASCII file avoiding the use of specialcharacters and any form of encryption.Comments and data will also beaccepted on disks in WordPerfect 5.1file format or ASCII file format. Allcomments and data in electronic formmust be identified by (OPPTS–50581B).No CBI should be submitted through e-mail. Electronic comment on this noticemay be filed online at many FederalDepository Libraries. Additionalinformation on electronic submissionscan be found under Unit IV of thispreamble.FOR FURTHER INFORMATION CONTACT:Susan B. Hazen, Director,Environmental Assistance Division(7408), Office of Pollution Preventionand Toxics, Environmental ProtectionAgency, 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 theFederal Register of October 31, 1990 (55FR 45994) EPA issued a SNURestablishing significant new uses for thesubstances listed in Unit I of thispreamble. Because of additional dataEPA has received for these substances,EPA is proposing to revoke the SNURs.I. Proposed RevocationEPA is proposing to revoke thesignificant new use and recordkeepingrequirements for the following chemicalsubstances under 40 CFR part 721,subpart E. In this unit, EPA provides abrief description for the substances,including its premanufacture notice(PMN) number, chemical name (genericname if the specific name is claimed asCBI), CAS number (if assigned), basis forthe revocation of the section 5(e)consent order for the substance, and theCFR citation removed in the regulatorytext section of this proposed rule.Further background information for thesubstances is contained in therulemaking record referenced below inUnit IV of this preamble.PMN Number P–89–697Chemical name: (generic) Alkenoic acid,trisubstituted-benzyl-disubstitutedphenylester.CAS number: Not available.Basis for revocation of SNUR: Based ondata for triethylene glycol diacrylatewhich was not carcinogenic in a longterm dermal bioassay in mice and a 28-day study for P–89–694 whichdemonstrated no dermal absorption ortoxic effects by the dermal route, EPAno longer supports the carcinogenicityconcern for this substance. Based onthat assessment EPA determined that itcould no longer support anunreasonable risk finding under section5(e) of TSCA and is revoking theconsent order. EPA can no longer make