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27. FAP4H5692.Monsanto Co., Suite 1100, 700 14th St., NW., Washington, DC 20005, proposes to amend 40 CFR 186.3500 by establishing a feed additive regulation to permit the combined residues ofthe herbicide glyphosate, N- (phosphonomethyl)(glycine), and its metabolite aminomethylphosphonic acid (AMPA) in alfalfa meal at 400 ppm. (PM-25)

28. FAP4H5693.Merck &Co., Inc., P.O. Box 450, Three Bridges, NJ 08887- 0450, proposes to amend 40 CFR 186.300 by establishing a feed additive regulation to permit combined residues ofabamectin and its delta 8,9 isomer in

or on apples, wet pomace at 0.110 ppm. (PM-13)

Withdrawn Petition

29. FAP9H5575.Notice appeared in the Federal Register ofMarch 23, 1989 (54 FR 12010), that Mobay Corp., (now Miles, Inc.), P.O. Box 4913, Kansas City, MO 64120-0013, proposed to amend 40 CFR parts 185 and 186 by establishing

a regulation to permit the residues ofthe fungicide terbuconazole (a-[2-(4- chlorophenyl)ethyl[-a-(1,1- dimethylethyl)-lH-1,2,4-triazole-1- ethanol) in or on barley milled fractions (except flour) at 1.0 ppm, wheat milled fractions (except flour) at 1.0 ppm, grape pomace (dry) at 12.0 ppm, and raisin
waste at 6.0 ppm. Miles, Inc., has requested that the petition be withdrawn without prejudice to future filing. (PM 21)

List of Subjects

Environmental protection,. Administrative practice and procedure, Agricultural commodities, Food and feed additives, Pesticides and pests.

Authority: 7U.S.C. 136a.
Dated: June 27, 1994. Stephen L. Johnson, Director, RegistrationDivision,Office of Pesticide Programs.


### IFR Doc. 94-16861 Filed 7-12-94; 8:45 am]

BILLING CODE 6560-60-F

[OPPTS-41041; FRL-4870-4]
Thirty-Fourth Report ofthe TSCA Interagency Testing Committee to the Administrator; Receipt of Report and Request for Comments

AGENCY: Environmental Protection Agency (EPA). ACTION: Notice.

SUMMARY: The TSCA Interagency Testing Committee (ITC), established under section 4(e) of the Toxic Substances Control Act (TSCA), 

### transmitted its Thirty-Fourth Report to the Administrator ofEPA on May 17, 1994. As noted in this Report, which is included with this notice, the ITC revised the PriorityTesting Listby: (1) 

### changing a recommendation for one chemical, white phosphorus, to a designation, (2) recommending two chemicals, ethyl tert-butyl ether and tert-amyl methyl ether, and (3)removing eight chemicals from the List. The eight chemicals being removed from the List

are: methyl methacrylate, diethyl phthalate, N-phenyl-1-naphthylamine, acetophenone, phenol, NNdimethylaniline, ethyl acetate, and 2,6- dimethylphenol. The Report states the

reasons for the removal ofthese chemicals from the List.EPA invites interested persons to submit written comments on the Report.

In addition; EPA is soliciting interested parties for participation in or monitoring ofa TSCA section 4testing consent agreement development process for white phosphorus that was designated for amphibian, reptile, wild mammal, and aquatic plant acute toxicity testing; and terrestrial plant uptake and translocation testing. EPA is also inviting manufacturers and/or processors ofwhite phosphorus who wish to participate in testing negotiations for white phosphorus to develop and submit testing agreement proposals to EPA.

EPA has already solicited interested parties in developing testing agreements for ethyl tert-butyl ether and tert-amyl methyl ether (59 FR 18399, April 18, 1994). 

### DATES: Written comments on the 34th ITC Report should be submitted by August 12, 1994. Written testing proposals must be received by September 12, 1994. Written notice of interest in being designated an "interested party" to the development

or monitoring ofa consent agreement for white phosphorus must be received by September 12, 1994. 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 Public Docket Office (7407), Office ofPollution Prevention and Toxics, Environmental Protection Agency, Rm. B-607 NEM, 401 M St., SW., Washington, DC20460. Submissions should bear the document control number (OPPTS-41041; FRL4870--4)

The public record supporting this action, including comments, is available for public inspection in Rm. B-607 NEM at the address noted above from 12

noon to 4 p.m., Monday through Friday, except legal holidays. FOR FURTHER INFORMATION CONTACT: Susan B. Hazen, Director, Environmental Assistance Division (7408), Office ofPollution Prevention and Toxics, Environmental Protection Agency, 401 M St., SW., Rim. E-543B, Washington, DC 20460, (202) 554-1404, TDD (202) 554-0551. SUPPLEMENTARY INFORMATION: 

### EPA has received the TSCA Interagency Testing Committee's Thirty-Fourth Report to the Administrator.

I. Background

TSCA (Pub. L. 94-469, 90 Stat. 2003
et seq; 15 U.S.C. 2601 et seq.) authorizes the Administrator ofEPA to promulgate regulations under section 4(a) requiring testing ofchemicals and chemical
groups in order to develop data relevant
to determining the risks that such chemicals'and chemical groups may present to health or the environment. Section 4(e) ofTSCA established the Interagency Testing Committee 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) PriorityTestingList at least
every 6 months. The most recent revisions to this List are included in the ITC's Thirty-Fourth Report. The Report

was received by the Administrator on May 17, 1994, and is included in this Notice. The Report changes a recommendation for one chemical, recommends two chemicals, and

removes eight chemicals from the TSCA section 4(e) PriorityTestingList.

I. Written and Oral Comments

EPA invites interested persons to submit detailed comments on the ITC's Report. All submissions should bear the identifying docket number (OPPTS41041).

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 on the subject chemicals as well as information 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 ThirtyFourth Report to the TSCA section 8(d) Health and Safety Data Reporting Rule (40 CFR part 716), which requires the reporting ofunpublished 

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health and safety studies on the listed chemicals.
IIL Status ofList

The ITC's Thirty-Fourth Report notes the change ofa recommendation for one chemical to a designation, the recommendation oftwo chemicals, and the removal ofeight chemicals from the Priority TestingList.The current TSCA section 4(e) Priority TestingList contains 12 chemicals and 12 chemical groups, with 2 chemical groups and 3 chemicals designated for testing.
IV. Testing Consent Agreements

1. Solicitation ofinterested parties. EPA's procedures for requiring the testing ofchemical substances,under section 4 ofTSCA include the adoption ofenforceable consent agreements and the promulgation oftest rules.These processes are found at40 CFR 790.20. EPA has on numerous occasions been approached by chemical companies interested in negotiating consent agreements fortesting ITC chemicals or chemical groups. As a result ofthese requests, EPA is now inviting persons interested in participating in or monitoring negotiations on the chemical designated inthe Thirty-Fourth ITC Report to notify EPA inwriting. Those who respond to this solicitationby the deadline established in this notice will have the status of "interested parties" and will be afforded opportunities to participate in thenegotiation process. These "interested parties" will not incur any obligations bybeing designated "interested parties."

2. Solicitationof testingproposals for consentagreementnegotiations. EPA is also now soliciting testing proposals for

a consent agreement to perform amphibian, reptile, wild mammal, and aquatic plant acute toxicity testing; and terrestrial plant uptake and translocation testing on white phosphorus. Following publication of this notice, manufacturers and/or processors have 60 days to develop and submit testing proposals that they wish EPA to consider as candidates for consent agreement negotiations for white phosphorus. Testing guidelines for the designated tests include: (1) Lemna Acute Toxicity Test at 40 CFR 797.1160, (2)Plant Uptake and Translocation Test at 40 CFR 797.2850, (3) Amphibian Acute Toxicity Test, (4) Reptilian Acute Toxicity Test, (5)Wild Mammal Acute Toxicity Test. These guidelines are available to the public through the TSCA Public Docket Office and theEnvironmental Assistance Division listed above. These guidelines should be reviewed before submitting any testing proposals inresponse to this notice.

For additional technical information

onthese testing guidelines contact Dr. Barnett Rattner, Department ofThe Interior, (301) 497-5671.

All testing proposals submitted should describe the testing to be performed and explain any deviations from the testprotocols.

EPA will review the submissions and select the most promising submissions

as candidates fornegotiation. 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. Negotiationoftestingprogramand developmentofatestingconsent 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.

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: June 30, 1994. CharlesM. Auer, Director,ChemicalControl Division,Office of

PollutionPreventionandToxics.

Thirty-Fourth Reportofthe TSCA InteragencyTesting Committeeto the Administrator,U.S.Environmental Protection Agency 

### SUMMARY: This is the 34th Report ofthe TSCA Interagency Testing Committee (ITC) to the Administrator ofthe U.S. Environmental Protection Agency (EPA). The ITC is revising its Priority TestingListby changing a 

### recommendation forone chemical, white phosphorus, to a designation for action by the Administrator within 12 months, recommending two chemicals, ethyl tert-butyl ether and tert-amylta methyl etherand byremoving eight chemicals. White phosphorus is being designated to meet the data needs ofthe Department ofInterior (DOI); discussions- are ongoing with the Agency forToxic Substances and Disease Registry (ATSDR), the Department ofDefense (DOD), and EPA to coordinate their data needs with those ofDOI. Ethyl tert-butyl ether and tert-amyl methyl ether are being recommended forhealth effects testing because EPAneeds these data for ongoing assessments. Methyl methacrylate and diethyl phthalate are being removed from the Listbecause dermal absorption rate data are available that are likely to satisfy the data needs of the Occupational Health and Safety Administration (OSHA). N-Phenyl-1- naphthylamine is being removed from the Listbecause studies reviewed by the ITC did not increase concerns for cancer and the ITC's priorities do not include designating the chemical at this time. Acetophenone, phenol, N,Ndimethylaniline, ethyl acetate and 2,6- dimethylphenol are being removed from the Listbecause EPA proposed the testing designated by the ITC in its 27th Report in a test rule that was published

on November 22, 1993 (58 FR 61654).

I. Background

The TSCA Interagency Testing Committee (ITC) wasestablished by section 4(e) ofthe Toxic Substances Control Act (TSCA):

...to make recommendations to the Administrator respecting the chemical substances and mixtures to which the Administrator should give priority consideration for the promulgation of arule for testing under section 4(a).... At least every sixmonths..., the Committee shall make such revisions in the Listas it determines to be necessary and to transmit them to the Administrator together with the Committee's

reasons for the revisions...

(Public Law 94-469, 90 Stat. 2003 et seq., 15 

### U.S.C. 2601 et seq.).

Since its creation in 1976, the ITChas submitted 33 semi-annual Reports to the EPA Administrator transmitting the Priority Testing Listand its revisions. These Reports have been published in the Federal Register (FR) and are available from the ITC. The ITC meets monthly and produces its revisions with the help ofstaffand technical contractsupport provided by EPA. ITC membership and support personnel are listed at the end ofthis Report.

Following receipt of the ITC's Report and the addition ofchemicals to the Priority TestingList, theEPA's Office of Pollution Prevention and Toxics adds these chemicals to TSCA section 8(a) and 8(d) rules that-require manufacturers, processors, and/or distributors of these chemicals to submit production and exposure data (8a), and health and safety studies (8d), within 2 months ofthe rules' effective date. The submissions are indexed and maintained by EPA. The ITC reviews the 8(a) and 8(d) information and other available data on chemicals and chemical groups (e.g., TSCA section 8(e) "substantial risk" studies, "For Your Information" (FYI) submissions to EPA and published papers) to determine if revisions to the PriorityTestingListare necessary. Revisions can include changing a recommendation to a designation for action by the Administrator within 12 months, modifying the recommended testing, or 

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removing the chemical or chemical group from the List.

II. Revisions to the TSCA Section 4(e) Priority Testing List

The ITC's revisions to its TSCA Section 4(e) Priority TestingList are summarized in the following Table 1.

TABLE 1. CHEMICALS DESIGNATED, RECOMMENDED AND REMOVED FROM THE TSCA SECTION 4(E) PRIORITY TESTING

LIST

CAS No. Chemical/Group Action Date

7723-14-0

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

.................................................. Designate Previously Recommended Chemical for Amphib- 5/94

ian, Reptile, Wild Mammal, and Aquatic Plant Acute Toxicity Testing; and Terrestrial Plant Uptake and Translocation Testing.

637-92-3

............... Ethyl tert-butyl ether

............................................... Recommend for health effects testing

................................... 5/94

994--05-8

............... Tert-amyl methyl ether

............................................ Recommend tor health effects testing

................................... 5/94

80-62-6

................. Methyl methacrylate

............................................... Remove Previously Recommended Chemical

...................... 5/94

84-66-2

................. Diethyl phthalate

...................... :

............................. Remove Previously Recommended Chemical

...................... 5/94 90-30-2

................. N-Phenyl-l-naphthylamine

..................................... Remove Previously Recommended Chemical

...................... 5/94 98-86-2

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

........................................................ Remove Previously Designated Chemical

............ .......... 5/94 108-95-2

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

................................................................... Remove Previously Designated Chemical

............................. 5/94 121-69-7

............... N,N-Dimethylaniline

.......................... Remove Previously Designated Chemical

............................. 5/94 141-78-6

............... Ethyl acetate

.......................................................... Remove Previously Designated Chemical

............................. 5/94 576-26-1

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

.............................................. Remove Previously Designated Chemical

............................. 5/94

III. Rationale for the revisions

A. ITC's ActivitiesDuringthisReporting Period

During the 6 months covered'by this Report, November 1993 through April 1994, the ITC reviewed the TSCA section 8(a) and section 8(d) submissions and other available data for white-phosphorus and N-phenyl-1- naphthylamine and dermal absorption data for diethyl phthalate and methyl methacrylate, and made decisions with respect to their dispositions on the PriorityTestingList.

B. SpecificRationales

1. Designatedchemical

- White phosphorus-a. Background.Thousands ofducks in wetlands at an artillery impact area have been poisoned by white phosphorus. The Department of Interior (DOI) is concerned about the persistence ofwhite phosphorus in wetland sediments, the adverse effects ofwhite phosphorus on wildlife, and the indirect effects ofwhite phosphorus

on endangered species that feed on

carcasses ofwhite phosphorus-poisoned wildlife.

In November 1991,'based on DOI's data needs, the ITC recommended testing to determine the persistence of white phosphorus in surface waters and sediments and the toxicity to migratory birds and other wildlife (see the ITC's 29th Report in 56 FR 67424, December 30, 1991). Since that recommendation, the DOI has considered these and other data needs. Discussions at ITC meetings,

are ongoing with the Agency for Toxic Substances and Disease Registry (ATSDR), the Department ofDefense (DOD), and the U.S. Environmental Protection Agency (EPA) to coordinate their data needs with those ofDO]. Several Federal Government organizations have past and ongoing activities that could result in the identification ofadditional data needs for white phosphorus and more ITC testing designations. Some ofthese activities are described below.

ATSDR is drafting a toxicological profile on white phosphorus. DOD is supporting studies on white phosphorus because it is detected in wetlands on DOD munitions testing sites. In 1990, EPA published a Drinking Water Health Advisory for white phosphorus (Ref. 20). In 1992 and 1993, EPA obtained 1991 and 1992 data under the Toxics Release Inventory (TRI), indicating that during each ofthese years about 300,000 pounds ofwhite phosphorus were released to land (Ref. 17). These releases

are an order ofmagnitude lower than reported for previous years (56 FR 67424) and reflect, in part, more accurate record keeping by white phosphorus manufacturers. In 1993, EPA and DOD conducted 4 seminars on "technologies for remediating sites contaminated with explosive and radioactive wastes" (Ref. 21). In 1993, EPA also prepared a handbook entitled "Approaches for the Remediation of Federal Sites Contaminated with Explosive and Radioactive Wastes" (Ref. 22). White phosphorus was extensively discussed in the seminars and the handbook. EPA is making a determination ofwhether there are health effects data needed for white phosphorus under Title III ofthe Clean Air Act. ITC will coordinate ATSDR, DOD and EPA data needs with those of DOI and determine ifadditional testing needs to be designated in a future ITC report.

The Chemical Abstracts Service (CAS) has two Registry numbers for white phosphorus: 7723-14-0, as a general number for white, yellow, black and red phosphorus, and 12185-10-3 specifically for white phosphorus. The
ITC used CAS No. 7723-14-0 in the 29th Report, because it is the most commonly used for white phosphorus. It is used to record production volume and environmental release data as well

as most published and unpublished studies. In response to the ITC's 29th Report testing recommendations, EPA promulgated TSCA section 8(a) and 8(d) rules for CAS No. 7723-14-0 on March 12, 1993, and for CAS No. 12185-10-3

on December 27, 1993. The manufacturers, processors and distributors ofwhite phosphorus submitted section .8(a)reports and section 8(d) studies only for 7723-14-0. 

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Therefore, the ITC is only designating the Army's firing ofwhite phosphorus white phosphorus as CAS No. 7723-14- munitions inwetland areas. 0 and requesting that EPA remove CAS White phosphorus hasbeen detected No. 12185-10-3 from the TSCA section in water samples (0.013-0.069 Jig/L) 8(d) rule. from Eagle River Flats (Ref. 10). White

b. Designated testing.To meet the phosphorus particles have been visually data needs of DOI, the ITCis identified and chemically-confirmed at designating white phosphorus for concentrations of 10 ppm in sediments amphibian, reptile, wildmammal and (Refs. 11 and 23). White phosphorus has aquatic plant acute toxicity testing, and been isolated from th6 gizzards ofdead terrestrial plant uptake and mallard ducks, Anasplatyrhynchos translocation testing. (Ref. 11). Exposure ofat least a dozen

c. Rationale fordesignation. DOI avian species has been documented reviewed the submitted section 8(a) and through chemical detection ofwhite 8(d) data as well asTSCA section 8(e), phosphorus ingizzard, liver, muscle, fat FYI, and published papers for white or skin (Refs. 11; 13, and 23). phosphorus. It continues to be White phosphorus contamination at concerned about the persistence of artillery impact areas is currentlybeing white phosphorus inwetland investigated by Simmers et al. (Ref. 14). sediments, adverse effects on wildlife Sampling results from 21 ofthe 23 DOD that feed on whie phosphorus- installations indicate that white contaminated sediments, and the phosphorus was detected (detection potential adverse effects on endangered limit ofI jig/kg) at seven of the species that feed on carcasses ofwildlife installations (Ref.3). that die from white phosphorus (2)Chemical fate information. poisoning. Although DOI is working Degradation rates ofwhite phosphorus with DOD to conduct and coordinate solutions have been characterized in an testing and field investigations ofwhite aqueous in vitrotest system (Ref.4), and phosphorus, DOI has data needs that are appear to be dependent on dissolved not included in this coordinated, oxygen, pH and temperature. Under government-funded program. These aerobic conditions, solutions ofwhite additional data are needed by DOI to phosphorus are rapidly oxidized (or

assess the ecological risks posed by possibly hydrolyzed or volatilized; Ref. white phosphorus. 15) andits concentration decreases

d. Supportinginformation. DOI monotonically with time (282 to 1762 nominated white phosphorus to the ITC pjg/L yielded a half-life of 3hours for the in 1991 because persistence and initial 24 hour period). However, ecotoxicity data wereneeded to assess degradation rates are reduced at the ecological risks posed by white temperatures below 22 0

### C and in closed phosphorus. The results of studies (non-aerated) test systems. Under such submitted under TSCA section 8(d) and conditions, white phosphorus half-life section 8(e), otherrelevant data, and increases from hours to weeks. When ongoing activities are presented below sediments were tested in a modified along with the specific rationales for the aqueous invitrotest system, designated tests. degradation rates ofwhite phosphorus

(1)Exposureinformation- were slower in sediment than in water production/use/disposal/exposure/ (Ref.5). release.In 1990, approximately 700 White phosphorus in sediments at the million pounds ofwhite phosphorus estuarine wetlands ofEagle River Flats,

were produced (Ref. 2). Based on 1991 Alaska is often found,as particulates, and 1992 TRI data, about 300,000 ranging in diameter from 0.15 to 3.5 mm pounds are released annually from (corresponding to the size range offood production facilities (Ref.17). The items and gizzard material selected by amounts ofwhite phosphorus released many species ofwaterfowl), and at during munitions testing, pesticides sediment depths ofup to 30 cm (Ref. manufacturing and other uses is 10). White phosphorus particles appear unknown to the ITC. to be quite persistent in the saturated

Every year since 1980, up to 3,000 saline sediments ofEagle River Flats, waterfowl (dabbling ducks), 50 swans, but volatilize as sediments dry below 20 and an undetermined number of percent moisture (Ref.23). Factors that shorebirds appear to have died from affect persistence ofwhite phosphorus white phosphorus poisoning at an in sediments include sediment porosity, artillery impact area in the estuarine moisture content and temperature, all of wetlands ofEagle River Flats, Cook which interact to determine the rate of Inlet, Alaska. This wildlife mortality sublimation. Oxygen may slow continues despite the fact that on sublimation by the formatiorn of September 10, 1991, theAssistant oxidation products around theparticles Secretary ofthe Army (Installations, that impose a diffusion barrier to white Logistics, and Environment) suspended'- phosphorus vapor. Using data on the dissolution rate ofwhite phosphorus particles in water (Ref. 15), Walsh (Ref. 23) estimated the dissolution ofa 1 mm diameter white phosphorus sphere to be 8 years. The extent of particulate white phosphorus contamination in the United States remains largely unknown.

The rate ofoxidation of white phosphorus particles in aerated-soil is highly variable depending on environmental conditions (Refs. 1, 12 and 24). Using a model to estimate the fate ofwhite phosphorus particles in soil, Spanggord et al. estimated that particles buried in soil could persist for several years, and ifan "oxidized coat"

were formed, particles could persist for thousands ofyears (Ref. 15).

These data demonstrate the persistence ofwhite phosphorus in sediments. Therefore, the ITC is not designating further chemical fate testing ofwhite phosphorus at this time.

(3) Health effects information.The ITC's 29th Report summarized available health effects data for white phosphorus. These data indicate that white phosphorus is highly toxic to humans and laboratory animals (56 FR 67424; December 30, 1991). As noted in the summary ofthis 34th Report, discussions are ongoing with ATSDR, DOD and EPA to coordinate their data needs with those ofDOI. The ITC is not designating further health effects testing
at this time because those discussions have not been completed.

(4) Ecologicaleffects informationAcute andsubchroniceffects (shortterm).The ITC's 29th Report summarized laboratory and field studies for white phosphorus. These studies indicated that white phosphorus is highly toxic to aquatic organisms (56 FR 67424, December 30, 1991).

Thirty-day bioassays are currently being conducted by the U.S. Army Environmental Hygiene Agency to

measure the toxicity ofwhite phosphorus contaminated sediments from Eagle River Flats to the crustacean, Hyallelaaztecaand the midge larve, Chironomusriparius (Ref. 10). The medianlethal dose for adult male and juvenile mallard ducks gavaged with white phosphorus dissolved in

corn oil vehicle was 6.5 mg/kg (Ref. 10). Signs oftoxicity include slow rhythmic lateral head shaking, and lethargy, followed by convulsions. Birds often succumb within 1 to 2 hours, but in other instances may linger for up to 55 hours prior to death. Concentrations of white phosphorus in dosed mallards exceed 0.25 ttg/g in fat, skin and liver (Refs. 10 and 11).

The acute median lethal dose ofwhite phosphorus in female mallards is being estimated by Sparling (Ref. 16). The 

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females appeartobeslightlymore tolerant thanmale and Ovenilebird (LD5O>1Omgkg): (Ref S). An estimation,ofthe lowest observable effect level OELIwilbe determined by Sparting (Re.d. 16)using white phosphorus pellets without vehicle, because a corn oil vehicle mayaffect absorption andtoxicity.

Increasing evidence suggests.the potential fo, widespread white phosphorus pollution inwetlands. Whilewhite phosphorustoxicitydata have been orarebeing developed for aquatic and avian speciesthat inhabit wetlands. Ther areno white phosphorus toxicity data for amphibians, reptiles, and,wild mammals that frequaenttemperate zone wetland habitats. In addition, some mammals, including furbearerm (e.g., mink), frequent wetlands and areknown
tobe far more sensitive,to certain environmental pollutants (e.g., PCBs. than.laboratory rodents. For these
reasons, DOI needs amphibian, reptile, and wild mammal acutetoxicity test data for its whitephosphorus.risk
assessment.

Based or limited available data and DOI's data needs, the ITC is designating whitephosphorus.foramphibian, reptile, andwild mammal.acute toxicity testing.

Chronic.(longterm) effects The lrrCs 29thReport described laboratory studies that demonstrated the chronictoxfcity ofwhite phosphorus to aquatic organisms (56 FR 674Z4, December 30, 1991).

Based on these dataand ongoing DOt studies,the. ITCisnot designating further chronic aquatic toxicity testing
atthis time- '

Metabolismanda phcrmacokinetIcs. Data for laboratory mammals were summarized inthe ITCs 29th Report (56 FR 67424', December30, 1991)Y Recent studies suggestthat acute white phosphorus toxicity ii warm-blooded, animalsmaybedue to,the nonenzymatic metabolism ofwhite phosphorustophosphine (Ref. 8).

Arecent publication described the uptake and t oss ofwhits phosphorus.in Ameri=n kestrels orsparrow hawks (Falco sparverius) Ref.. 

### 91. This; study; indicated that although uptake,ofwhite phosphorus was rapid, bioaccumulation is limited inAmerican kestrelsbecause, ofchemical orenzymatic degradation.

Uptake,anddepurato studies of white phosphorus administered to mallardsbelow theLD5U will be studied by Spaing(Ref. 16)

.Pharmacokinetics, will be studied by Sparling (Raf. i) at various fntervefra 10-day period in breast musde.gizzard, abdominal fat, skin, liver,,pancreas and blood..Sperling (Ref 161 wilTalso.study histopathological andbiochemical biomarkers ofexposure.

Based on these data and ongoing DOI studies, theITCis'notdesignating. frrther metabolismr and pharmacokinetic testingat this time.

Reproductiveeffects. In rats, 75 pttg/kgf dayofwhite phosphorus reduced pregnancy rates (Ref. 61, increased death.
rates offemales in Late gestation (Ref. 71j increased parturition-related difficulties (Ref. 181, andincreased the number of dead pups atbirth (Ref. 191. Thebirth defects caused by white phosphorus,, and the presence ofwhite phosphorus inherring gull eggscollected in Eagle River Flats (Ref.a), suggest theneed for reproductive effects,studies in hirds DOIis planning preliminary studies,to. investigate.fertility rates ofmale and female mallards repeatedly gavaged (chronic exposure) with low doses of white phosphorus (Ref 16).

Based,on the studies conducted by Monsanto and planned DO1 studies,the ITCis not designating; further reproductive effects testing at this time.

Otherecological, effects. Predation of ducks poisoned by whitephosphorus was" systematically monitored atEagle RiverFlats in the springandfall of 1991 (Ref. 131. Twenty-fourinstances.of predation ofsickor dead dabbling ducksbybald eagles (Ffaliaet u leucocephalus),, hering gulls (Larus argentatus) andcommon ravens (Cbrvus'

carax were observed. Other predators, includingnorthern harrier (Circus cyaneus)and coyotes (Caisladranl havebeen observed tohunt over the Flats.,Many decayingbaUd eagle

carcasses have been foundat or near Eagle River'Flats% and thesingle carcass testedwaspositive for white, phosphorus in fatty tissues (Refs. 10and 13)'.Based,onthese observations, and. therisk assessment ofRoebuck et al. (Ref. 13), there isconsiderable potential for secondary pofsoning ofpredators, including endangered species.

DOI will investigate secondary poisoning of'predators (raptorsand other scavengers. using captive American kestrelsfMd northern bobwhite quail chicks (Colinus virginianus) thathad been gavaged with, I mg/kg pelletized white,phosphorus for

a 10-day period (Ref. 18). Mortality, biochemical and histopathological biomarkers oftoxicity,,and white phosphorusburdens in kestrels willbe studied (Ref. 181.

Based on data publishedbyRacine (Ref. 10) and Roebuck (Ref. 13) an& planned DOI,studies,the FCfsnot designating otherecological effects testing at thistime BNoconcentrationand food chain transport. The 29th ITC Report noted thatbioconcentratfon o-white phosphorus was studied in three-species offish, six species ofinvertebrates and in two species ofseaweed (56 FR 674Z4;, December 30. 

### 1911. Fish and invertebrates have been collected at Eagle River Flats by Racine for determination ofwhite phosphorus uptake (Ref. 10).

A recent study suggested that large predators such asbald eagles. thathave the ability to ingest whole gizzards of.
prey birds, could bioaccumulate white phosphorus because the amount ingested could' exceed the degradation capacity (Ref. 9).

Few data are available on bioconcentration and foodchain transport ofwhite phosphorus by plants. This data need concerns DOI because white phosphorus has been detected in or on the roots ofsalt marsh plants at Eagle River Flats (Ref. 10.1; and because many herbivorous wildlife species couldbe exposed to, and be adversely affected by, white phosphorus

as a result ofuptake and bioconcenfration by plants. Based on DOI's data needs, the ITCis designating whitephosphorus for aquatic planttoxicity and terrestrial plant uptake and translocationr testing. 2. Recommendedchemicals

- Ethyl' tert-butyl'ether andtert-amylmethyl ether- a.Background.The ITC designated methyl tert-butyl ether (MTBE)' for health effects testingin its 20th Report because of concerns for widespread human exposure to low level fugitive emissions ofMTBE at gasoline pumps.and the need for chronic health effects data (5Z F. 19020; May 20,.1987). In,response to the ITC's designation, EPA andMTBK manufacturers negotiated aTSCA section 4 enforceable consent agreement to develop pharmacbkinetics,. genotoxicity, subchronictoxicity, reproductive effects, developmental toxicityneurotoxicity, and,oncogenicity data (53 FR 10391, March.3.1, 198S1. EPA is evaluating the.data fromthe completed MTBE testing program.

EPA needs health effects data for two other fuel oxygenates, ethyl tert-butyL ether (ETBEI.and tert-amyl methyl ether (TAME) andis soliciting interest in. developingtesting agreements foxr these. chemicals C(59FR 18399, April 18, 1994)

b. Recommended testfng, Ethyl tertbutyl ether and tert-amryl methyl ethes

are being,recommended for health ' effects testingbecause EPA needs these data for ongoing,assessments.

c. Rationale for recommendation. The

use ofETBE and TAME'to augment or I

## PV 5 I

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### Federal Register / Vol. 59, No. 133 / Wednesday, July 13, 1994 / Notices 35725

substitute for MTBE as fuel oxygenates and the health effects data needs of ETBE and TAME are ofconcern to EPA and the ITC. Therefore, the ITC is recommending testing to obtain TSCA section 8(d) health and safety data on ETBE and TAME to support EPA's ongoing assessments ofthe potential hazards/risks posed by these two chemical substances. The ITC will share the data with EPA and other interested U.S. Government organizations represented on the ITC and will review these data to determine whether ETBE and TAME should be designated for testing or removed from the Priority TestingList.The ITC is also requesting data on acute toxicity ofgasoline mixtures containing ETBE and/or TAME. The ITC's process of recommending ETBE and TAME and then making decisions following data review is consistent with the process used forMTBE. MTBE was recommended in ITC's 19th Report (51 FR 41417, November 14, 1986) and designated in ITC's 20th Report, following ITC's review ofvoluntarily submitted and TSCA section 8(d) data.

d. Supportinginformation.EPA's
recent Federal Register notice provides supporting information (59 FR 18399, April 18, 1994).

The requirements ofthe Clean Air Act (CAA), 42 U.S.C. 7401-7671q, along with reports ofadverse human health effects associated with the use ofMTBE in winterblend gasoline, have contributed to the need for health effects testingof ETBE and TAME.

MTBE, ETBE, and TAME are fuel oxygenates which may be used to.satisfy the following requirements under the CAA. Under section 211(m) ofthe CAA, 42 U.S.C. 7545, States which have certain attainment

areas for carbon monoxide (CO)must require that any gasoline sold or dispensed to ultimate customers in a specified portion of the nonattainment areabe blended, during wintertime, tocontain not less than 2.7 percent oxygen byweight (or applicable percentage to meet the national primary air quality standard forCO by the established attainment date). Under section 211(k), reformulated gasoline must be used in nonattainment areas in nine major metropolitan areas that are designated as
ozone nonattainment areas as well as various nonattainment "opt-in" areas by 1995 and the oxygen content ofthis gasoline must be equal to orexceed 2percent by weight. See Final Rule, Regulation ofFuels and Fuel Additives: Standards for Reformulated and Conventional Gasoline, February 16, 1994 (59 FR 7716). In addition, a proposed regulation [by EPA's Office of Airand Radiation] would require that atleast 30 percent of the oxygen content ofreformulated gasoline come from renewable oxygenates, which would include ETBE. See OAR/EPA Notice of Proposed Rulemaking, regulation ofFuels and Additives: Renewable Oxygenate Requirement for Reformulated Gasoline, December 27, 1993 (58 FR 68343).

Recently, there have been reports from the State ofAlaska and several areas in the lower 48 states ofadverse human health effects [(e.g., headache, nausea, general malaise)] associated with the use ofMTBE in winterblend gasoline. (See Assessment ofPotential Health Risks ofGasoline.Oxygenated with MTBE, Office ofResearch and Development, U.S. EPA, November 1993.)

EPA believes that additional health effects test data on fuel oxygenates are needed to allow government agencies and industry to compare the health risks associated with the

use ofthese substances to augment or substitute for MTBE as a fuel oxygenate....

(1) Exposureinformationproduction/use/disposal/exposure/ release.Estimates published in 1991 indicate thatby 1995, annual production vblumes of ETBE and TAME

are expected to exceed 26 million pounds (Refs. 29 and 30) and 6billion pounds (Ref.35), respectively. Estimates published in 1994 indicate that by 1995, about 335,000 barrels per day (32 billion pounds per year) of oxygenates will be needed to meet oxygenated'and reformulated-fuel mandates (Ref. 28). Consumer, occupational or environmental exposures to ETBE or TAME could be substantial based on their use as fuel oxygenates. (2) Physicalandchemical information.ETBE has a molecular weight of 102.18, a melting point of-97 *C (Ref. 26), aboiling point of 72 to 73 *C (Ref. 26), a log octanol/water partition coefficient of 1.58 (Ref. 31), a water solubility of 12,000 mg/L at 20 0C (Ref. 32), a vapor pressure of 130 mm Hg
at 25 °C (Ref.32), and a Henry's Law
constant of 1.45 x 10- 3 atm-m 3/mole at 25 *C (Ref. 34).

TAME has a molecular weight of 102.18, a boiling point of85 to 86 °C (Ref. 25), a log octanol/water partition coefficient of 1.58 (Ref. 31), a water solubility of 11,500 mg/L at 20 °C (Ref. 32), a vapor pressure of75 mm Hg at 25 °C (Ref. 32), and a Henry's Law Constant of 9.15 x 1,0-' atm-m 3/mole at 25 °C (Ref, 10).

(3) Chemical fate information.The estimated atmospheric half-life ofETBE is 1.9 /days based on a hydroxyl radical concentration of5 x 105 OH/cm 3 

### and a rate constant of8.5 x 10-12 atm-m 3/ molecule-sec developed by Japar et al. (Ref. 29). The estimated atmospheric half-life ofTAME is 2.3 days based on

a hydroxyl radical concentration of 5 x 105 OH/cm 3and arate constant of7.91
X 10-12 

### atm-m3 

### /molecule-sec estimated by Atkinson (Ref. 27).

The ITC is not recommending chemical fate testing, because it is not

a high priority data need at this time. (4) Healtheffects information.The ITC is recommending health effects testing to meet EPA's data needs.

(5) Ecologicaleffects information.The ITC is not recommending ecological effects testing, because it is not a high priority data need at this time.

3. Removalofchemicals from the PriorityTestingList- a.Methyl methacrylateanddiethylphthalate.In its 32nd Report, the ITC designated methyl methacrylate (CAS No. 80-62-6) and diethyl phthalate (CAS No. 84-66- 2) for dermal absorption testing to meet the data needs ofthe Occupational Safety and Health Administration (OSHA) (58 FR 38490, July 16, 1993). These chemicals were added to the PriorityTestingList as members of a 34- chemical group that had inadequate dermal absorption rate data. OSHA nominated these chemicals to the ITC to obtain data for OSHA to determine whether skin notations should be assigned to these chemicals.

The ITC obtained dermal absorption
rate data for methyl methacrylate (Ref. 37) and diethyl phthalate (Ref. 36) that

are likely to meet OSHA's data needs. As a result, the ITC is removing methyl methacrylate and diethyl phthalate from the PriorityTestingList and making the data publicly available by including the references in the EPA docket for this 34th Report and transmitting the data to OSHA and other interested U.S. Government organizations. As a result offinding that these data are likely to meet OSHA's data needs, the ITC requested EPA to remove these chemicals from its TSCA section 8(a) and/or section 8(d) rules before the May 10, 1994 reporting deadline. EPA removed methyl methacrylate and diethyl phthalate from these TSCA section 8 rules on May 2, 1994 (59 FR 22519, May 2, 1994).

b. N-Phenyl-1-naphthylamine. In its 27th Report, the ITC recommended Nphenyl-1-naphthylamine (CAS No. 90- 30-2) for carcinogenicity testing to meet the data needs ofOSHA and for chemical fate and ecological effects testing, because ofITC concerns for environmental persistence and aquatic toxicity (56 FR 9534, March 6, 1991).

OSHA was concerned about potential occupational exposures to N-phenyl-1- naphthylamine in hydraulic fluids and other mixtures, and the potential carcinogenicity ofthis N-substituted aromatic amine. As noted in ITC's 27th Report, OSHA's exposure concerns were based on 1981-1983 National Occupational Exposure Survey estimates that 96,478 workers were potentially exposed to N-phenyl-1- naphthylamine almost exclusively through trade name products. After 

### Vol. 59, No.' 133 / Wednesday, July Federal Register / 13, 1994 / Notices 

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### Federal Regiser 

### I VoL 59, No, t33 / Wednesday, July 13, 199-4 / Notices

reviewing the TSCA section 8a) production andexposure data. ITC Members met with theU.S. manufacturer ofN-phenyl-1- naphthylamine. At the meeting and during subsequent discussions, the ITC Members were provided with estimates that 800to 900workers were exposed to technical grade Nphenyl4- naphthylamine during manufacturing and processing and specifications showing that concentrations ofNAphenyl-1-naphthylamine fit formulated lubricants were generally less than four percent Ref. 39).

ITC Members also reviewed the TSCA section 8(d) health and safety studies and other toxicity data on f-phenyl-lnaphthylamine that were obtained'after the 27th Report was published. Most of these studies were conducted on' formulated products thatdid not specify the amount oftechnical grade N-phenyl1-naphthyramine in the product.The aquatic toxicity studies indicated that formulated products containing IVphenyt-l-naphthylamine were several orders of magnitude less toxic than pure N-phenyf-T-naphthybunine, which, as reported in ITC's27thReport. was highly toxic to aquatic organisms and teratogenic to frogs (56 FR 9534, March6, 1991). Thebiodegpadatfon studies on formulated products containing Nphenyl-1-naphthylamine cohfinmed its potential environmental persistence. The health effects studieson formulated products containing N-pheny-l- 'naphthylamine did not suggestconcerns for carcinogenicity. The results from. testinga structurally-related chemical, N-phenyl-2naphthylamin (CAS No. 135-88-61 by the National Toxicology Program (NTPJ showed it tobe noncarcinogenic in rats and mice (Ref. 40). Based on the available health effects data and structure-activity considerations. there is no reason to believe thatN-pheny-I-naphthylamine would have a greater carcinegenic potential than N- phenyr-?.- naphthylamine.

. The ITC is removing N-phenyl-lnaphthylamine from the PriorityTesing Listbecause the available data did not increase concem for carcinogenicity, and thechanging priosities ofthe LTC.do
notwarrant designating the chemical for testing at this time. This decision is consistent with the April 1993 decision by the German Advisory Committee on Existing Chemicals ofEnvironmental Relevance (BUA) tonot conduct priorty, carcinogenicity inrvestigptions ofNphenyl-1-naphthylamine (Ref. 3al.

The ITChas completed its review of TSCA section a(djinformationf rNphenyl-A-naphthylamine and requests. that EPA remove it from theTSCA 

### section 8(d) rule.

. Acetophenane,pheno, N',Ndimethylaniline, ethyl acetate and 2.6- dimethylphenal In its 27th Report, the ITCdesignated acetophenone, phenol., N,N-dimethylaniline, ethyl acetate and 2,6-dimethylphenot to meet EPA's data needs (56FR9534, March &, g91.. The ITC is removing these chemicals from the

### Priority TestingList because EPA proposed a test rule on November 2Z, 1993 to implement the testing (58 FR 61654, November 2Z, 1993.

References

(1)Bohn, H.I., Johnson, G.V. and Cliff,J.H. "Detoxification ofwhite phosphorus in soil" JournalofAgricultural andFoodChemistry

. 18:117 -173 (1970).

(2)CMR (Chemical Marketing Reporter) Chemical'Profiler Phosphorus. 

### February 18, 1991.

{3) Daniels, 

### J.D.Letterfrom James ID. Daniels, Profect Engineer, U.S Army Environmental Center,Aberdeen Proving Ground, MDt BarnettA. Rattner; Deputy Chief,Branch ofEnvironmentat Contaminants Reseam, Patiment WildlifeResearch Center, National Biohgica Survey, Department ofthe Interior. Preliminary report ofresults from the.survey ofrange impact areas

### of 23 installations. Dated February 28,1994.

(4) Lal, M.G. "Characterization of'white phosphorus in water. ILDegradation ofwhite phosphorus in aqueous system. "- Nval Surface Weapons enter. SifverSpring, MD. NSWCTR 79- (1,979)L

(51 Lai,M G. "Characterization ofwhite phosphorus in.water. i. Behavior ofwhite phosphorus in the,water-sediment interface." Naval Surface Weapons Center, Sirver Spring, MD. NSWCTR 81-&7 (1981)'.

(6) Monsanto Company. "Letter from, MonsantaCompany to.th U.S EPA submitting information on elemental phosphorus with attachments." TSCA 8,e submission £a-80000065, microfiche number OTS-051825, Washington, DC: OPPT, U.S. EPA (1989).

(71 Monsanto Company. "Aone-generation reproduction study in rats with elemental phosphorus conducted by gavage in rats- (pathologyreport) with cover letterdbted: 020591:'TSCA 8e submission.97- 910000168, microfiche number 0 ES0518525-3, Washington, DC: OPPT, U.S. EPA (1991),

(8 Nam, S.i, Roebuck, B.D., Walsh, M.E, andRacine, C. "Biotransfer and accumulation ofwhite phoslonis." Thirteenth Annual Meeting ofthe S9ciety of Environmental Toxicology and Chemistr f . Abstract 256 (1992.

(9)Nam,,S.I._ Roebuck, 

### B.D andWalsh, M.E. "Uptakeand loss ofwhite phosphorus in American kestrels." Envixonmental Toxicology andChemistry.13"637-441 (1994J.

(101 Racine, CIT. "Eagle River Flats Progress Report." Department of the Army, Cold Regions Research and Engineering Laboratory, Corps ofEngineers. Hanover, New Hampshia 18 pM, No'mber 12 1993. (ill' Racine, CH., Wbash, M.E. Roebuck, B.D., Collins, CM., Calkins, D., Reitsma, L, Buchil, R., andCGodfarb, G. "While phosphorus poisuing ofwaterfowL in an Alaskan salt marsh."journalofWildlifeDiseases.28:669-673 (1992

.

(12) Rodrigues, A.. Bohn, H.L and Johnson, G.V. "White phosphorus as a phosphatic fertilizer." Soil Science Proceedings. 36:364-366(1972'. (13' Roebuck, B.D1, Walsh, M.E., Racina, C.H., Reitsma, L, Steele, B., and Nam, & "Predation ofducks poisoned by white phosphorus: Exposure and riskto predas." EnvironmentalToxicologyand Chemistry.rn Press.

(14) Simmers, I.W., Price, R.A.. and Bird, S.T. "Assessment ofwhite phosphorus contamination ofartillery impactareas." Fourteenth Annual Meeting ofthe Societyof Environmentak Ticoklgy aid Chemistry. Abstract P509 (1993).

(ls),Spanggprd, R.., Rwick, P.ChoanT.- W., Wilson. R-Podoll

.. T.MilI,T. Parna% T., Platz, R.and RobertsD.L. "Environmental fate ofwhite phosphorustfelt and red phosphorus/butyl rubber military screening smokes.-Final report.- SR International, Menlo Park,CA. A A176922 (1985).

(16) Sparling, D.W. "Occurrence ofwhite phosphorus,in food chains within Eagle River Flats and its toxicity to waterfowL" U.S. Departmentof the Interior, National Biotogical Survey, Patuxent Wildlife Research Cnter; Laurel, MD. Study Plan and Modification 30030.23 (1994)

(17) TRI (Toxics.Release Inventory). Database retrieval 3/21/194. U.. Environmental Protection Agency (19941.

(18) U.S. EPA. "U.S. EPA Status Report: elemental phosphorus with cover letter d&ted 112989." TSCA FYf subn ission FYr-OTS0785-0423, microfiche mnnber 0OTS0000423-1, Washington, DC.OPPT, U.S. Environmental Protection Agency,(1989}.

(19) U.S. EPA. -U.S. EPA Status-Report: elemental phosphorus with cover letter dated 112989."-TSCA 8e submission a&EH-89- 0820, microfiche aumberGTS-05T8525-I, Washington, DM OPPF, U.S. Environmental Protection.Agency (989gb).

(20) U.S. EPA. "White Phosphorus Health Advisory." U-S. Environmental Protection Agency's OfficeofDrinking Water. NTIS PB 91-161025(1.9901.

(21 U.S. EPA. "Seminar on technotagies for remediating sites contaminated with explosive and radioactive wastes." U.S. Environmental Protection Agencyrs Office of Research and Development and Department of Defense.EPA/625/K-931001 (1993).

(22: U.S. EPA. "Handbook: approaches for the remedlation of Federal facility sitescontaminated with explosive orradioactive wastes." U.S Environmrental Protectior Agency's Office ofResearch and Development EPA/625/R-93AY13 ( 19"3) . (23) Wa]sh', M.E: "White-phosphorus; An environmentaf contaminant.- Master of' Science Thesis. Thayer Schootof Engineering, Dartmouth College, Hanover, New Hampshire. 11 pp. (190)

(24) Warnock, R.E "Escapeofelementa phosphorus from soil appled aswhike phosphorus or thephosphorus-sulfur 

### 35726

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### Federal Register / Vol. 59, No. 133. 1 Wednesday, July 13. 1994 / Notices

eutectic solution."Journal'of Enviromnental 

### Quality1:311-3-14 (1972).

(25) Aldrich. Cataleg ofFine Chemicals 1990-1991 Milwaukee, WL Aldrich Chem CO. p. 98 (1990).

(26) Aldrich. Catalog ofFine Chemicals 1990-1991 Milwaukee, WI: Aldrich- Chem CO. p, 239 (1990o.

(271 Atkinson, R. "Kinetics and Mechanisms oftheGas-Phas' Reactio-s of the Hydroxyl.Radical with Organic Compounds." JournalofPhysical Chemical Reference Data.D.R. Lide, Jr., Ed.American. Chemical Society. p. 142 (1989.

(28) Chemical Engineering. "The drive for cleaner-buning fueL. ChemicalEngineering.
p. 61, January 1994.

(29) Chemicalweek, "ETBE gains presence in reformulated fueL" Chemicalweek p. 9, July 31,1991.

(30) Chemicalweek. "Clean air drives the MTBE race." Chemicalweek.p., 22, Mly 31, 1991.

(31) CLOCI. CLOG-PCGEMS-Qaphfc Exposur Modeling System. W"OGP, ULS.EPA (1986), (32)Evans, T.W.Edlund, ICR. "Tertiary Alkyl Ethers Preparation and Properties Industrial andEngineeringChe'nisty. 28:1186 (1933).

(33) Japar, S.M., Wallington, T.J., Rudy, S.J., Chang, T.Y. "Ozene-Forming Potential of

a Series ofOxygenated Organic Compounds,. EnvironmentalScience Technao. 25"415- 420 (19911_

(34) Lyman, W.J., Reehl, W.F., and Rosanblatt, D.H.Handbook ofChemical Property Estimation Methods. Environmental Behavior of Organic Compounds. Washington, DC American.Chem ical Society. pp. 4-0,5-4.5-10, 7-4, 7-5, 15-15
to 15-32 (19901.

(35) NFR. "Over half-million B/Dof oxygenate maybe needed to,supply demand due to CAA." New Fuels Report. p, 12, February 25.1991.

(36) Scott, KC, Dugard. P.H., Ramsey, J.I). and Rhodes, C "in vitroabsorption ofsome o-phthatate diesters through human andrat skin.." Envhoementatffeafth Perspectives. 74:223-227(1987Y. (37) Zeneca. "Methyl methacrylate: in vitroabsorption through human epiderms." Zeneca Central Toxicology Laboratory Report No. CTL/P/4025 proided bythe Methacrylate Producers Association, Washington, D.C. (1993).

(38) BUA. "N-phenyl-t-naphthylamine, BUA-Stoffbericht 113, Stand: April 1993 (In German)." BUA, Stuttgart (1993).

(39) Carlton, B.D. September 7, 1993 letter from Dr. Betsy D. Carlto, Rhene-Poulenc to Dr. John D. Walker, TSCA Interagency Testing Committee. Rhone-Poulenc, Research Triangle Park, N.C. (1993)..

(40) NTP (National Toxicology Program. "Toxicology and carcinogenesis studies ofNpheny]-2-napthylamine (CAS No.. 135-8-6. in F344/N rats and B6C3F1 mice (feed studies)." NTP TR333. Research Triangle, Park, NC: U.S. Department ofHealth and Human Services, National Institutes of Health (January 1988).

IV. The TSCA Section 4(e) Priority Testing List, as Revised (May 19941



### THE TSCA SECTION, 4(e) 

### PdorityTesting 

### List (May 1994)

Re- Date ChemicaVGroup Action,



### 23. November 988

.......... 

### Btsyradehyde

............... Recommended 23 Novembeg 1,988

........ -

### Tekchloroethytethyreiediphosphate

.............................. Recommer4ed witlhento-dsignate Tnstl

, .dchloro-2qy phosphateTd4-clro-2-propyl phosphate. 'Tris2.chlawo-l -propyl) phosphate lTrisp*Varoethyll-phosphate. 26 May 1990 t tsocyanates

. .. Ree ended,witt Intent-to-designate 27 November $990 Aldehydes

..................... Recommended with Intent-to-designate 27 Novemibet 1,990. Suimse................................... Recommended 27 Novmber $990

. Substtally produced chemical in need of subchrore fox- Recommended 

### ltesting. 28 May 1991

. . 

### Acetse..........

.............. Designated 

### 28 May 1991 Thl....-l

........... ......................................................... Designated 28 May 1991

...... mDinilrobenzene Recommended 28 May 1991

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

### C;

anoacrylates

...................................................................... Recommended 29 November 1991

............ _ Alkyl-, bromo-, chloro-,hydroxymethyt diarylethers

............. Recommended 30 May 1992

........................ Siloxanes

................................................................ .... ........ Reco er 30 May t992

...... .- Chrroallyl phosphates

............................................................... Recomnmended 31 January 1993

.................. OSHA chemicals wit dermttoxicity data

........................... Designated 31 January 1993 Propylene glycol ethers

### and esters (revised)

......................... Recommended 31 January 1993

.......Methyl ethylene glycol ethers and esters (revised) Recommended 32 May 1993

...........OSHA chemicals withinsufficfent dermal absorption data Designated 34 May 1994

......................... 'White phosphorus

......... .... Designated 34 May 1994

......... Ethyo telutyI ether Recommended 34 May 1994

......................... Tert-amyl methyl ether

.......................... Recommended



### The followingtable listthe members ofthe TSCA Interagency Testing Committee.



### StatutoryOtganizations and Their Representatives

Councilow EhvoraentoaQnlity Elisabeth Blaug, Member DepartmentofCommerce Edward White,.Member Willie E: May, Alternate

Eaivrmemvbt Pkafctuior Ageany David l Wi im, 

### Member Lois Diaker Alem NationalCancer Institute Thomas P.Cameron, Member Richard'Adanson. Alternate OccupationalSi7fety andHealth Administration christine Whittaker, Member, Chair

Nati'al bsti&tofEnvironmental fealth, Liaison Organizations and Their Sciences Representatives Emo Zeigp. Member Ageney far Toxic5khstrncesandDisease Regstry NotionalInsttutebfrOccupationalSety William Cibulas, Member andHealth Robert W. Mason, Member Henryka Nagy. Alternate

National S 'enee Foundatitn indaOuguay, Member ConsumerProduct Safety Comission Val Schaeffer, Member Lakshmi C. Misfr Alternat
Departmentof Agriculture Dobnald herr Member 

### Clifford Rice, Alternate 

### 357237

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### Federal Register / Vol. 59, No. 133 /Wednesday, July '13, 1994 / Notices

Departmentof Defense David A. Macys, Member James N. McDougal, Alternate
DepartmentoftheInterior Barnett A. Rattner, Member

FoodandDrug Administration Edwin J.Matthews, Member Raju Kamnula, Alternate

. National Libraryof Medicine Vera Hudson, Member

NationalToxicologyProgram Victor A. Fung, Member

Counsel Mary Ellen Levine, Office of General Counsel, EPA

TechnicalSupportContractor Syracuse Research Corporation

CommitteeStaff John D.Walker, Executive Director Norma S.L. Williams, Executive Assistant, TSCA Interagency Testing Committee U.S. EPA/OPPT (MC/7401) 401 M St., SW., Washington, DC 20460, (202) 260- 1825, Fax (202) 260-1764 [FR Doc. 94-16983 Filed 7-12-94; 8:45 am]

BILLING CODE 6560-60-

FEDERAL COMMUNICATIONS COMMISSION

Public Information Collection Requirement Submitted to Office of Management and Budget for Review

July 11, 1994.

The Federal Communications Commission has submitted the following information collection requirement to OMB for review and clearance under the Paperwork Reduction Act of 1980 (44 U.S.C. 3507).

Copies ofthis submission may be purchased from the Commission's copy contractor, International Transcription Service, Inc., 2100 M Street, NW., Suite 140, Washington, DC 20037, (202) 857- 3800. For further information on this submission contact Judy Boley, Federal Communications Commission, (202) 632-0276. Persons wishing to comment

on this information collection should
contact Timothy Fain, Office of Management and Budget, Room 10236 NEOB, Washington, DC 20503, (202) 395-3561.

Note: The Commission requested expedited review ofthis item by July 11, 1994, under the provisions of 5CFR 1320.18.

OMB Number:None. Title:Voluntary Customer Survey for Private Land Mobile Radio Users.

Action:New collection. Respondents:Individuals or households, state or local governments, federal agencies or employers, non

### profit institutions, and businesses or other for-profit (including small 

### businesses). Frequency of

Response:One time 

### survey.

Estimated AnnualBurden:30 

### responses; 2hours average burden per response; 60 hours total annual burden.

Needsand Uses:The FCC will 

### conduct avoluntary customer survey to improve customer service to Private LandMobile Radio applicants and licensees. The FCC will conduct focus groups as well as administering written questionnaires. Focus groups will 

### provide the Commission with preliminary data which will be used to develop questions for the written questionnaire. Licensees, frequency coordinators, lawfirms, vendors, and license groups from the Metropolitan

area will be invited to participate in the focus groups. Three two-hour focus groups will be conducted whereby participants will be asked nine openended questions. Participants will respond verbally. Participants will not be given these questions in advance. Out-of-pocket expenses that result ,from focus group participation will notbe reimbursed. During the focus groups, data will be gathered on (1)problems, (2)suggestions to improve services, (3) services customers would like, and (4) services customers do not want. This data will be used to develop customer service standards.
Federal Communications Commission. 

### William F.Caton, Acting Secretary. 

### Language for Customer Segment Hello, my name is and 

### Iam calling from the FCC.

The Federal Communications Commission is conducting a survey of their customers to determine the kind and quality ofservices theywant and theirlevel of satisfaction with existing services. You've been identified as having recently been through the FCC's licensure application process. Is this correct? (Ifyes, continue, ifno, indicate

we are only looking forpeople who have been through the licensure process and thank them fortheirtime.)

As acustomer ofthe Private Radio Bureau within the FCC, we would like to share your comments and ideas at a focus group. We are inviting various types ofcustomers, like yourself, that 'have recently gone through the licensure process at FCC.We've hired the consulting firm ofBooz, Allen & Hamilton to conduct these focus groups. We hope that you will come and comment on the experiences you have had while obtaining a license from the FCC and to describe the kind of quality ofservices you need from thePrivate 

### Radio Bureau. We will usethe results of the focus groups to set customer service standards and to develop a customer service plan.

We will be holding the focus groups at the Booz, Allen & Hamilton offices in 

### Bethesda, MD on the following dates

_ . During the focus groups, you 

### will be asked a series ofquestions relating to the licensure application process at the FCC, your particular experiences with the FCC and what types of improvements you would recommend. We expect the focus groups to last approximately two hours. Will you be able to attend? Which date is best for you? We will send you a confirmation letter that includes directions to the Booz, Allen & Hamilton offices. Thank you foryour time. We look forward to hearing your suggestions.
June

_ , 1994.

Dear 

### Thank you foragreeing to participate in the FCCCustomer Service Focus Groupto be held on July

__, 1994. As we mentioned during ourphone call, FCC is conducting a survey oftheir customers to determine the kind and quality ofservices they need and their level of satisfaction with existing services. We have hired the consulting firm ofBooz, Allen &Hamilton to conduct the focus groups. The focus group willbegin at

._ at the Booz, Allen &Hamilton offices located at4330 East-West Highway, Bethesda, Maryland. We have enclosed directions for your convenience.

Please go to the North tower ofEast-West Towers and report to the receptionist located

on the loth floor. We look forward to hearing your suggestions. Sincerely,


### Focus Groups Questions for Five PRB CustomerGroups (Licensees, Frequency Coordinators, Law Firms, Vendors, and Licensee Representatives)

Introduction



### Why FCCis surveying customers: -National Performance Review -Executive Order #12862 -Align services with customer needs

What this surveying entails: 

### -Talking with customers directly to

assess their customer service needs -Obtaining customer evaluation of

current FCC services provided -Developing customer service

standards to ensure appropriate level of service to customers Question1:What services have you required from the FCC?

Question2:During what points ofthe license application process did you. interact directly with the FCC? 35728

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