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Assessing and Managing Chemicals under TSCA

Chlorinated Benzenes; Final Test Rule

EPA is issuing a final rule, under section 4 of the Toxic Substances Control Act (TSCA), requiring: (1) Manufacturers and processors of 1,2,4-trichlorobenzene (TCB) to conduct oncogenicity testing of 1,2,4-TCB.(CAS No. 120—82—1), (2) manufacturers and processors of monochlorobenzene (MCB) to conduct reproductive effects testing of MCB (CAS No.108—90—7), (3) manufacturers and processors of ortho- and para-dichlorobenzenes (1,2- and 1,4-DCBs) to conduct reproductive effects testing of 1,2- and 1,4-DCBs (CAS Nos. 95-50-1 and 106-46—7, respectively), and (4) manufacturers and processors of 1,2,4,5-  tetrachlorobenzene (l,2,4,5-TCB; CAS No.95-94—3) to conduct reproductive effects and developmental toxicity testing of 1,2,4,5-TCB.

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