ABSTRACT

EXPERIMENT IN RATS BY ORAL ADMINISTRATION OF SINGLE DOSES. ALTHOUGH NEOPLASTIC CHANGES OF THE LIVER WERE REPORTED, THE STUDY WAS CONSIDERED TO BE INADEQUATE. NO EVALUATION OF THE CARCINOGENICITY OF PBB COULD BE MADE ON THE BASIS OF THE AVAILABLE DATA. FR CHEMICAL; NO KNOWN CURRENT PRODUCTION

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REPORT02

REPT'D USE

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EPA TSCA 4(A) PROPOSED RULE NOTICE 50FR45123

OCT85

EPA PROPOSES THAT MFRS AND PROCESSORS CONDUCT CHEMICAL FATE AND ENVIRONMENTAL EFFECTS TESTING FOR OMCTS. REQUESTEDTESTSINCLUDEBIODEGRADATIONSTUDIES;ENVIRONMENTAL EFFECTS STUDIES IN FISH AND INVERTEBRATES; AND A MALLARD REPRODUCTION TEST. THIS IS EPA'S RESPONSE TO lTC'S DESIGNATION OF OMCTS FOR PRIORITY TESTING UNDER TSCA 4(A).