Federal Register / Vol. 58, No. 135 / Friday, July 16, 1993 / Notices

ENVIRONMENTAL PROTECTION AGENCY [OPPTS-41039; FRL-4630-21 Thirty-Second Report ofthe TSCA Interagency Testing Committee tothe Administrator; Receipt of Report, Request forComments, Notice of Opportunityto Initiate Negotiationsfor TSCA Section 4Testing Consent Agreements
AGENCY: Environmental Protection Agency (EPA). ACTION: Notice. SUMMARY: The TSCA Interagency Testing Committee (ITC), established under section 4(e) ofthe Toxic Substances Control Act (TSCA), transmitted its Thirty-Second Report to the Administrator ofEPA on June 2, 1993. Thisreport is included with this notice. Asnoted in this Report, the ITC revised the Priority TestingListby adding one group of34 chemicals to the list forpriority consideration by the EPA Administrator for promulgation of test rules under section 4(a) ofthe Act. These chemicals are designated for response within 12 months. Therefore, in response to the ITC's designation, EPA will either initiate rulemaking under section 4(a) ofTSCA, enter into
a testing consent agreement, or publish
a Federal Register notice explaining the
reasons for not initiating such rulemaking within 12 months.The ITC is also removing four designated chemicals and two recommended chemicals and eight recommended chemical groups added in the TwentyEighth Report. The ITC's reasons for removing these chemicals and chemical groups are stated in the Thirty-Second Report. There are no recommended with intent-to-designate chemicals or chemical groups in the Thirty-Second Report. EPA invites interested persons to submit written comments on the Report.

In addition, EPA is soliciting interested parties for participation in or monitoring ofaconsent agreement process forthe chemicals that were designated for dermal absorption testing. EPA is also inviting manufacturers and/or processors of chemical substances who wish to particijate intesting negotiations forthe chemicals designated fordermal absorption testing to develop and submit testing consent agreement proposals to EPA. DATES: Written comments on the ThirtySecond ITCReport must be received by August 16, 1993. Written testing proposals mustbe received by September 14, 1993. Written notice of interest inbeing designated an "interested party" to the development
or monitoring ofa consent agreement for the chemicals designated fordermal absorption testing mustbe received by September 14, 1993. Those submitting written testing proposals will be considered "interested parties" and do not have to submit separate written notice. EPA will contact all "interested parties" and advise them ofmeeting dates. ADDRESSES: Send six copies ofwritten submissions to:TSCA Docket Receipts (TS-790), Office ofPollution Prevention and Toxics, Environmental Protection Agency. Rm. ET G-102,401 M St., SW., Washington, DC 20460. Submissions shouldbear the document control number (OPPTS-41039; FRL-4630-2). The public record supporting this action, including comments, is available forpublic inspection in Rn. ET G-102 at the address noted above from 8 a.m. to noon and 1p.m. to 4 p.m., Monday through Friday, except legal holidays. FOR FURTHER INFORMATION CONTACT: Susan B. Hazen, Director, Environmental Assistance Division (TS799), Office ofPollution Prevention and Toxics, Environmental Protection Agency. 401 M Street, SW., Rm. E543B, Washington, DC 20460, (202) 554-1404, TDD (202) 554-0551.

SUPPLEMENTARY INFORMATION: Electronic Availability. This document, along with the PriorityTestingList revised according to the Thirty-Second Report, is available asan electronic file
on The Federal BulletinBoardat 9 a.m. on the date ofpublication inthe Federal Register. By modem dial 202-512-1387
or call 202-512-1530 for disks or paper copies. This file is also available in Postscript, Wordperfect and ASCII. The PriorityTestingListis available in Wordperfect and ASCII. I. Background

TSCA 

### (15 U.S.C. 2601 et seq.) authorizes the Administrator ofEPA to promulgate regulations under section 4(a) requiring testing ofchemical substances and mixtures ("chemicals") in order to develop data relevant to determining whether such chemicals maypresent unreasonable risks to health orthe environment. Section 4(e) ofTSCA established the Interagency Testing Committee (ITC)to recommend chemicals and chemical groups to the Administrator ofEPA for priority testing consideration. Section 4(e) directs the ITC to revise the TSCA section 4(e) Priority TestingList at least every 6 months. The most recent revisions to this List are included in the ITC's Thirty-Second Report. The Report was received by the Administrator on June 2, 1993, and is included with this notice. The Report adds Igroup of 34 chemicals to the TSCA section 4(e) Priority TestingListand removes 4 designated chemicals and 2 recommended chemicals and 8 chemical groups added in the TwentyEighth Report. I. Written and OralComments on Recommendations

EPA invites interested persons to submit detailed comments on the ITC's
new recommendations. The Agency is interested in receiving information concerning additional or ongoing health and safety studies onthe subject chemicals as well asinformation relating to the human and environmental exposure to these chemicals.

A notice will be published at a later date in the Federal Register adding the substances recommended in the ITC's Thirty-Second Report to the TSCA section 8(d) Health and Safety Data Reporting Rule (40 CFRpart 716), which requires the reporting ofunpublished health and safety studies on the listed chemicals. That notice will also add the chemicals to the TSCA section 8(a) Preliminary Assessment Information Rule (40 CFRpart 712). The section 8(a) rule requires the reporting ofproduction volume, use, exposure, and release information on the listed chemicals. I1. Status ofList

The ITC's Thirty-Second Report notes the addition ofone chemical group to the PriorityTestingList and the removal of4 designated chemicals and 2 recommended chemicals and 8 chemical groups added in the TwentyEighth Report. The current TSCA section 4(e) Priority TestingList contains 18 chemicals and 17 chemical groups; 2 chemical groups and 7 chemicals are designated for priority testing consideration. IV. Testing Consent Agreements

1. Solicitationof InterestedParties. EPA's procedures for requiring the testing ofchemical substances under section 4 of TSCA at 40 CFR 790.22, includes the adoption ofenforceable consent agreements and the promulgation oftest rules. EPA has on numerous occasions been approached by chemical companies interested in negotiating consent agreements for testing ITCchemicals or chemical groups. As a result oftheserequests, EPA is now inviting persons interested inparticipating in ormonitoring 35490

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negotiations on the chemicals designated inthe Thirty-Second ITC Report to notify EPA in writing. Those who respond to this solicitation by the deadline established inthis notice will have the status of"interested parties" and will be afforded opportunities to participate In the negotiation process. These "interested parties" will not incur any obligations by being designated "interested parties." This solicitation is separate from the solicitation of interested parties made inthe Federal Register ofMay 5, 1993 (58 FR 26898).

2. Solicitationof testingproposals for consentagreementnegotiations. EPA is alsonow soliciting testing proposals for
aconsent agreement to perform dermal absorption testing on the 34chemical substances designated inthe ThirtySecond Report. While this solicitation is separate from the solication of interested parties made forthe 24 substances designated in the ThirtyFirst ITCReport published May 5, 1993 (58FR 26898). EPA expects that any testing consent agreement adopted for this effort, as well asthe testing method referenced, will be substantially similar. Following publication ofthis notice, manufacturers and/or processors have 60 days to develop and submit testing proposals for any ofthe chemical substances designated in the ThirtySecond Report that they wishEPA to consider as candidates for consent agreement negotiations.

Federal scientists from a number of the ITC's statutory and liaison organizations including the Consumer Product Safety Commission, Environmental Protection Agency, Food and Drug Administration. National Institute forOccupational Safety and Health, and Occupational Safety and Health Administration, have developed
aproposed test protocol that will provide data needed by several U. S. Government Organizations represented
on the ITC. This proposed protocol is entitled "Protocol for invitro Percutaneous Absorption Studies" and is available to the public through the TSCA Docket Receipts and the Environmental Assistance Division listed above. This document shouldbe reviewed before submitting anytesting proposals inresponse to this notice.

For additional technical information
on this testing protocol contact Dr.John D. Walker, Executive Director, TSCA Interagency Testing Committee, (202) 260-1820.

All testing proposals submitted should describe the testing to be performed and explain any deviations from the testprotocol that are necessary to assure the development ofreliable percutaneous absorption data.

EPA will review the submissions and select the most promising submissions
as candidates for negotiation. Submissions that fully address the ITC's
concerns will have a higher chance of
success than those that do not fully address all data needs.

3. Negotiationoftesting programand developmentofa testingconsent agreement.EPA will follow the negotiation procedures under 40 CFR 790.22, and to the extent feasible, the timetable outlined in 40 CFR part 790, Appendix A to subpart B.

In the case ofthe 34 substances designated for priority testing consideration inthe Thirty-Second ITC Report, EPA believes that obtaining testing through the development of .consent agreements would be most feasible if interested manufacturers organized a testing consortium. Because ofthe straightforward and relatively ipexpensive nature ofthetests for each ofthe substances (i.e., dermal absorption tests), and the costs to EPA and industry that would be incurred should many consent agreements be pursued, EPAbelieves that negotiating with an organized group of manufacturers may bethe mostefficient
means to obtain the needed testing.

For additional information about process or negotiations contact Frank Kover, Chief, Chemical Testing and Information Branch, (202) 260-8130.

Authority: 15 U.S.C. 2603. Dated:July 8, 1993.
Charles M. Auer, DirectorChemicalControlDivision,Office of

PollutionPrevention andToxics.
Thirty-Second Report ofthe TSCA Interagency Testing Committee to the Administrator, Environmental ProtectionAgency

SUMMARY. The TSCA Interagency Testing Committee (ITC) was created under section 4(e) ofthe Toxic Substances Control Act (TSCA) as an independent advisory committee to establish testing priorities for TSCAregulable chemical substances and mixtures ("chemicals") for the Administrator ofthe U.S. Environmental Protection Agency (EPA). The ITC maintains the TSCA Section 4(e) PriorityTestingListand transmits revisions ofthe Listas a Report to the EPA Administrator at least every 6 months for action and publication inthe Federal Register. ThisReport presents the ITC's revisions ofthe Priority TestingListresulting from its deliberations during the reporting period November, 1992 through May, 1993.

In this revision, ITC is designating a group of34 chemicals ofregulatory interest to the Occupational Safety and Health Administration (OSHA) for dermal absorption testing and is removing 4 designated chemicals, 2 recommended chemicals and 8 recommended chemical groups added in ITC's 28th Report (56 FR41217, August 19, 1991). These revisions are summarized inTable 1.

TABLE 1.- REVISIONS TO THE TSCA SECTION 4(E) PRIORITY TESTING LIST
Action Chemicals or Groups Date Designated for dermal absorption testing

............. .............. Previously Designated Chemicals Removed from the Ust

........................................... 34 OSHA Chemicals with Insufficient dermal absorption data. n-Butanol

................................................................. Isobutanol

........................................................... Dimethylterephthalate

............................................ Di(2-ethyIhexyi)adIpate

........................................... 38491

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TABLE 1.- REVISIONS TO THE TSCA SECTION 4(E) PRIORITY TESTING LIST-Continued

Action Chemicals or Groups Date Previously Recommended Chemicals Removed from the UIt

..................................... Aliyl alcohol

............................................................. 5193 2,4-Dichlorophenol

................................................. Previously Recommended Chemical Groups Removed from the List

.............. Alkynes

.................................................................. 5193 Nitroalcohols

.................................................... Phosphonlums

........................................................ Hydrazines

.............................................................. Oxlrane

.................................................................. Alkoxysllanes

.......................................................... Aldehyde hydrates

............................... 

## isothlocyanates

1.1 Background.Since its creation in 1976 under section 4(e) ofthe Toxic Substances Control Act (Public Law 94- 469, 90 Stat. 2003 et seq., 15 U.S.C. 2601 et seq.), theTSCA Interagency Testing Committee has submitted 31 semiannual Reports to the Administrator of the U.S. Environmental Protection Agency to establish testing priorities for TSCA-regulable chemicals. These Reports have been published in the Federal Register and are also available from the ITC. In this, its 32ndReport, the ITCisrevising its Priority Testing Listby designating a group of34 chemicals for dermal absorption testing and by removing 4 designated chemicals, 2recommended chemicals and 8 recommended chemical groups. A short version ofthe PriorityTestingList appears atthe end ofthis Report. The 32nd Report and the completePriority TestingListwith allindividual chemicals ineach group are available upon request from the ITC (address and phone number given atthe end ofthis Report) orthe Government Printing Office (202/512-1530) and on the Federal Bulletin Board by modem (202/ 512-1387).

The ITCmeets at least once a month and produces its Reports with the help of staffandtechnical contract support provided by EPA. ITCmembership and support personnel arelisted at the end ofthis Report.

Following receipt ofthe ITC's Reports, the EPA's Office ofPollution Prevention and Toxics promulgates TSCA section 8(a) and 8(d) rulesthat require manufacturers, processors and distributors to submit (1) production and exposure data and (2) health and safety studies within 2 months ofthe rules' effective dates These submissions
are indexed and stored byEPAtand reviewed by the ITC. Within 12 months ofan ITC designation, the Administrator ofEPA must initiate a proceeding under TSCA section 4(a)to implement the ITC's testing-recommendations or publish in the Federal Register the Administrator's reasons fornot initiating action.

1.2. Actions taken by theITCin this Report-i.2.a Designated chemicals. Thirty-fourOSHA-nominated chemicals for which available dermal toxicity or absorption data are insufficient, I. Rationale for the Designation

OSHA previously established Permissible Exposure Limits (PELs) for chemical substances and mixtures to limit workers' exposure to industrial chemicals. In general, PELs are based on inhalation ofairborne dusts and vapors. In those cases where chemical absorption through the skin could be harmful, the chemicals with PELs are assigned skin notations. OSHA needs quantitative measures ofdermal absorption to evaluate potential hazards to workers. OSHA requested that the ITC use itsTSCA section 4(e) statutory authority to designate chemicals with PELs forpriority testing consideration bythe EPAAdministrator. In its 31st Report, the ITC designated for dermal absorption testing agroup of 24 chemicals for which no dermal toxicity

or absorption data could be located in the publicly available literature. Inthis Report, the ITCis designating a group of 34 chemicals for dermal absorption

. testing because existing dermal toxicity
or absorption data are not sufficient for OSHA's needs (Table 2). mDinitrobenzene is already on the Priority TestingListas arecommendation from the 28th Report and isbeing designated in this Report fordermal absorption testing.

TABLE 2.- OSHA CHEMICALS DESIGNATED FOR DERMAL ABSORPTION TESTING

GAS No.__J Chemica Name

, 61-82-5 Amitrole'

74-96-4 75-15-0 75-25-2 75-34-3 77-78-1 Ethyl bromide Carbon disulfide Bromofonrn 1,1-Dichloroethane Dimethyl sulfate TABLE 2.- OSHA CHEMICALS DESIGNATED FOR DERMAL ABSORPTION TESTING--Continued

CAS No. Chemical Name

79-46-9 2-Nitropropane 80-62-6 Methyl methacrylate 84-66-2 Diethyl phthalate 88-72-2 o-Nitrotoluene 89-72-5 o-sec-Butylphenol 90-04-0 o-Anisidine 95-13-6 Indene 95-49-8 o-Chlorotoluene 99-65-0 m-Dinltrobenzene 100-00-5 p-Nitrochlorobenzene 100-01-6 p-Nitroaniline 100-44-7 Benzyl chloride 100-63-0 Phenylhydrazine 106-49-0 p-Toluldine 108-44-1 m-Toluldine 108-90-7 Chlorobenzene 109-99-9 Tetrahydrofuran 121-14-2 2,4-Dinitrotoluene 122-39-4 Diphenylanine 126-99-8 beta-Chloroprene 150-76-6 p-Methoxypheno 528-29-0 o-Dlnitrobenzene 540-69-0 1,2-Dichloroethylene 625-17-5 m-Phthalodinitrile 768-52-5 N-Isopropyanillne 1300-73-8 Xylidine 6423-43-4 Propylene glycol dinitrate 25013-15-4 Vinyl toluene
I. Supporting Information

In its January 19, 1989Air Contaminants Rule (54 FR 2332), OSHA stated that:

The purpose ofhaving the skin designation is to prevent the same toxic effects that the chemical causes through inhalation. The inhalation limit isbased on keeping exposure below the limitwhich will create a significant risk ofmaterial impairment of health. Ifskin absorption ispossible, an employee mightbe below the Inhalation limit; however, the additional body burden through skin absorption may create the material impairment which the limit attempts to reduce.

In September 1991, OSHA nominated chemical substances and mixtures with PELs (54 FR 2332) to the ITC to assess the availability ofdata relevant to dermal absorption and the possibility of 38492

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### Federal Register / Vol. 58, No. 135 / Friday, July 16, 1993 / Notices

testing under TSCA. A summary of TC'sreview ofthese OSHA chemicals is presented in the following Figure 1:



## Figure 1.Summary of ITC Review of OSHA Chemicals.

658 Chem"ca Substances and 

# I Mixtures from54FR2332 

## I

24 Chemicals withno dermal toxicitydata 1 Designated In ITC's31st Report

. 75 hemicals with some dermnal toxicity dataI



### 145 Chemicals that are polYmers, 

### pesticides,complex mixtures, or CFCs

The ITCinitiated an evaluation of658 ofthese chemicals and set aside for future review 145 chemicals that are polymers, pesticides, complex mixtures,
or chlorofluorocarbons (CFCs).Forthe remaining 513 chemicals, the Registry of Toxic Effects ofChemical Substances (RTECS) was searched forreported dermal LD50 values. Chemicals with rabbit dermal LD50s inRTECS were deferred for future ITCreview. Chemicals that are vapors at ambient temperature, highly reactive, known to have lowtoxicity, or members ofOSHAdefined chemical groupswere also deferred forfuture ITCreview. RTECS, INDEX MEDICUS, MEDLINE, TOXLINE, TOXUIT, TSCATS and EPA's Existing Chemical Assessment Tracking System
were searched to determine Ifdermal toxicity orabsorption data were available for the remaining 99 chemicals. No dermal toxicity or absorption data were located for 24 chemicals. These 24 chemicals were designated fordermal absorption testing in the ITC's 31st Report. 

### 441 Chemicals that are vapors,

sensitizers, highly reactive, members of OSHA-defined chemical groups, or have known lowtoxicity ordermal LD50values 38491,

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The literature searches located 168 references on dermal toxicity or absorption data for 75 chemicals. The lTCreviewed these references and made
a tentative determination that 14 chemicals had sufficient data to estimate the dermal absorption rate. These 14 chemicals were referred to OSHA for further evaluation. The ITC also determined that 27 chemicals had dermal LD50values or were sensitizers, fast polymerizers, ofknown low toxicity, orwere members ofOSHAdefined chemical groups. These 27 were added to the 414 deferred above for future ITCreview. The ITC determined that the remaining 34 chemicals had insufficient data to estimate dermal absorption rates and is therefore designating these 34 chemicals for dermal absorption testing inthis Report.

2.2 Removal ofChemicals from the Priority TestingList I. Rationale forthe Removals

In its 28th Report to the Administrator (56 FR 41212), the ITC designated 6 chemicals and recommended 3 chemicals and 11 chemical groups. The rationale for adding the individual chemicals to the PriorityTestingList
was that the resulting test data could be used to increase the confidence in the Reference Concentrations (RICs) and Reference Doses (RiDs)for these chemicals inEPA's Integrated Risk Information System (IRIS). Eightofthe 11 chemical groups were added to provide EPA with data to develop and improve Quantitative Structure Activity Relationships (QSARs) forpredicting biodegradation and aquatic toxicity in the review ofnew chemicals structurally related to the recommended groups ofchemicals.

Last yearEPA requested that the ITC review its actions in the 28th Report in light of the possibility ofvoluntary testing ofsome ofthe designated chemicals and the relevance of additional data forQSARs compared to other data needs. The Committee reevaluated the designations and recommendations ofthe 28th Report and concluded that,while testing of these chemicals and groups would provide useful information toEPA and others, the need for data is greater for chemicals to which workers are exposed and whichpose a possiblebut unknown hazard via skin absorption. In the 31st Report, theITC designated a substantial number ofthese chemicals forwhich there are no dermal toxicity data. Further study ofthe "OSHA chemicals" reveals that many more have insufficient dermal absorption data. Because earlier entries to the Listand present designations are competing for
-scarce resources at EPA and within the 1TC, the Committee has reevaluated their relative priorities.The Committee concluded that the previously recommended chemicals are oflower priority than those now being designated. II. Specific Actions
A. Removal of Four oftheSix Chemicals Designated inthe28thReport In March, 1993, EPA received written confirmation that industry will test 4 of the 6 designated chemicals. Industry has committed to develop dossiers and necessary test data under the Screening Information Data Set (SIDS) program of the Organization forEconomic Cooperation and Development (OECD). The SIDS program Is a consensus testing regimen developed for screening high production chemicals that is accepted by all OECD member nations. The four chemicals are n-butanol, isobutanol, di(2-ethylhexyl)adipate, and dimethyl terephthalate.

The ITC views the voluntary commitments from industry to conduct the SIDS testing as an important first step in filling the existing data gaps of these chemicals. Although not identical to the tests called forby the ITCinits 28th Report, the SIDS testing addresses the general concerns ofthe Committee and will be useful to EPA for the RfCs and RfDs.Therefore, in this Report, the ITCis removing these four designated chemicals from the PriorityTestingList. In.the event the SIDS information is not developed oris deemed inadequate, the ITCwill reconsider designating these chemicals in a future report. The other 2 designated chemicals, acetone and thiophenol, remain on the List. B. Removal ofTwo ChemicalsandEight ChemicalGroupsRecommended in the 28th Report

As described above, the 28th Report recommended 3 chemicals (allyl alcohol; 2,4-dichlorophenol; and mdinitrobenzene) to obtain data for the IRISdata base and 8 groups (aldehyde hydrates, alkoxysilanes, alkynes, hydrazines, isothiocyanates, nitroalcohols, oxiranes, and phosphoniums) to develop QSARs. Submission ofdata on these chemicals would take place after EPA issues section 8(a) and 8(d) rules. EPA requested section 8 information on the chemicals added to the Priority Testing List inthe 27th Report to determine if the submitted data willbe useful to EPA forits IRIS and QSAR activities. Until the requested information is analyzed, EPA questioned ifmore data are needed forthis purpose. Thus, EPA requested the ITCto remove the recommended chemicals and groups in the 28th Report from the List.

Member agencies did not identify priority concerns for 2 ofthe individual chemicals orthe groups and, inview of competing priorities, the Committee is removing 2 chemicals and 8 groups from the List.The chemicals being removed are allyl alcohol and 2,4- dichlorophenol. Allyl alcohol is listed in Title IIIofthe 1990 Clean Air Act amendments and is under study at EPA forresidual risk levels. The National Toxicology Program has completed a carcinogenicity study on 2,4- dichlorophenol and this chemical is also being considered for regulation by EPA's Office ofDrinking Water.The following groups are removed: aldehyde hydrates, alkoxysilanes, alkynes, hydrazines, isothiocyanates, nitroalcohols, oxiranes, and phosphoniums.

The ITC plansto continue review of the 8 removed groups on a chemical by chemical basis to assess possible
concerns ofMember agencies. Although the individual chemicals and groups are no longer on the PriorityTestingList and EPA will notbe issuing requests for information under TSCA section 8, all interested persons are invited to submit unpublished chemical fate or ecological effects data foruse in developing or modifying QSARs. Submissions can be made toEPA's Public Docket Office and should bear document control number OPTS-41035. The ITCwilluse all submitted data in its continuing review.

THE 

### TSCA SECTION 4(E) PRIORITY TESTING LIST

R- Date ChemIcal/roup Action

22 May 1988 Elhoxyfated quatemaiy ammonium oompounds

........ Recommended 22 May 1988 Imidazollum quaternary ammonium compounds Recommended 38494

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### I Vol. 58, No. 135 

### I Friday, July 16, 1993 

### I Notices

THE TSCA SECTION 4(E) PRIORITY TESTING LiST--Continued

Re- Date ChmaVGroup Action PortIII

November 1988 November 1988 November 1988 November 1988 November 1988 November 1988 November 1989 May 1990 May.1990 May 1990 November 1990 November 1990 November 1990 November 1990 November 1990 November 1990 November 1990 November 1990 November 1990 November 1990 November 1990
May 1991 May 1991" May 1991 May 1991 November 1991 November 1991 May 1992 May 1992 January,1993 January 1993 January 1993 Tetrakls(2-chloroethyl)ethylene di-phosphate

.................... Tds(1,3-dichloro-2-propyl) phosphate

................................ Trts(1-chloro-2-propyl) phosphate

...................................... Tds(2-chloro-1-propyl) phosphate

.................... Tds(2-chloroethyl)- phosphate

........................................... Butyraldehyde

.................................................................... Brominated flame retardants

............................................. Isocyanates............................ Bromlnated flame retardants

............................................. Alkyl phosphates

........................................................ Acetophenone

.......................... Phenol

................... ; ........................................................... N,N.Dlmethylaniline

........................................................... Ethylacetate

....................................................................... 2,6-Dimethylphenol

............................................................ Aldehydes

.......................................................................... 2,4-Dinttrophenol

..................................... ,.......................... 3,4-Dlmethylphenol

............................................................ N-phenyl-I-naphthylamine

...................................*

............. Sulfones

............................................................................. Substantially produced chemicals In need of sub-chronic

toxicity testing

................................................................. Acetone

.... ................................ Thiophenol

......................................................................... m-Dinltrobenzene

............................................................... Cyanoacrylates

........................................................... White phosphorus

.............................................................. Alkyl-, bromo-, chloro-, hydroxymethyldiaryl ethers

......... SlIoxanes

............................................................................ Chloroalkyl phosphates

...................................................... OSHA chemicals with no dermal toxicity data

.................. Propylene glycol ethers and esters (revised)

.................... Methyl ethylene glycol ethers and esters (revised)

.......... Recommended with Intent-to-desIgnate Recommended wIth Intent-to-designate Recommended with Intent-to-designate Recommended with Intent-to-desIgnate Recommended with Intent-to-designate Recommended Recommended Recommended with Intent-to-designate Recommended Recommended Designated Designated Designated Designated Designated Recommended with Intent-to-designate Recommended Recommended Recommended Recommended

Recommended Designated Designated Recommended Recommended Recommended Recommended Recommended Recommended Designated Recommended Recommended
321 May 1993 OSHA chemicals with Insufficient dermal absorption data IDeslgated

TSCA INTERAGENCy TESTING COMMITTEE Statutory Organizations andTheir Representatives. Council on Environmental Quality

......................... :
..................................................................................... Department of Commerce

...................................... .................................................................................... Environmental Protection Agency

............................................................................................................... National Cancer Institute

............................................................................................................................. National Institute of Environmental Health Sciences

...................................... National Institute forOccupational Safety and Health

................................................................................ National Science Foundation.............................................
Occupational Safety and Health-Administration

.........................................................................................
Liaison Organizations andTheir Representatives. Agency forToxic Substances and Disease Registry

................................................................................. Charles Herrick, Member Willie E.May, Member Edward White, Alternate James B.Willis, Member John S.Leltzke, Alternate Thomas P. Cameron, Member Richard Adamson, Alternate Errol Zelger, Member Robert W. Mason, Member Henryka Nagy, Alternate Carter Klmsey, Member, Chair Jarvis L. Moyers. Alternate Christine Whittaker, Member, Vice

Chair Surender Ahlr, Altemate

Sharunda Buchanan, Member 38495

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TSCA INTERAGENCY TESTING COMMrrTEE--Continued

Consumer Product Safety Commission

...................................................................................................... Department ofAgdculture

................................................................................................................. Department ofDefense

...................................................................................................................... Department ofthe Interior

.................................................................................................................
Food and Drug Administation

.................................................................................................................... National Library ofMedicine

....................................................................................................................... National To logy Program

..................................................................................................................... Couns l

.................................................................................................. .o,.............................. .......
Technical Support Contractor

..................................................................................................................... ITC Staff

...................................................................................................................................................... Val Schaeffer, Member Lakshml C. Mishra, Alternate Donald Derr, Member Cliff Rice, Alternate Randall S. Wentsel, Member Jim Petty, Member Barnett A. Rattner, Alternate Edwin J. Matthews, Member Raju Kammula, Alternate Vera Hudson, Member Victor A. Fung, Member Mary Ellen Levine, Office of the

General Counsel, EPA Syracuse Research Corporation John D. Walker, Ph.D., M.P.H., Executive Director Norma S.L. Williams, Executive Assistant TSCA Interagency Testing Committee U.S. EPNVOPPT (TS-792) 401 M St.. SW., Washington, D.C. 20460, (202) 260-1825

[FR Doc. 93-16895 Filed 7-15-93; 8:45 am]

- AO 141~ e 38496

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