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§ 721.1790 Polybrominated biphenyls.
(a) Chemical substances and significant new uses subject to reporting. (1) The chemical substances identified as 1,1′-(Biphenyl, 4,4′-dibromo- (CAS No. 92-86-4); 1,1′-(Biphenyl, 2-bromo- (CAS No. 2052-07-5); 1,1′-(Biphenyl, 3-bromo- (CAS No. 2113-57-7); 1,1′-(Biphenyl, 2,2′, 3,3′, 4,4′, 5,5′, 6,6′-decabromo- (CAS No. 13654-09-6); Nonabromobiphenyl (CAS No. 27753-52-2); Octabromobiphenyl (CAS No. 27858-07-7); and Hexabromobiphenyl (CAS No. 36355-01-8) are subject to reporting under this section for the significant new uses described in paragraph (a)(1)(i) of this section.