Section 721.10830 - 2-Butene, 1,1,1,4,4,4-hexafluoro-, (2Z)-(a)Chemical substance and significant new uses subject to reporting.(1) The chemical substance identified as 2-butene, 1,1,1,4,4,4-hexafluoro-, (2Z)- (PMN P-11-549; CAS No. 692-49-9) is subject to reporting under this section for the significant new uses described in paragraph (a)(2) of this section.(2) The significant new uses are: (i)Industrial, commercial, and consumer activities. Requirements as specified in § 721.80(f), (j), and (o) .(b)Specific requirements. The provisions of subpart A of this part apply to this section except as modified by this paragraph. (1)Recordkeeping. Recordkeeping requirements as specified in § 721.125(a) through (c), and (i) are applicable to manufacturers and processors of this substance.(2)Limitations or revocation of certain notification requirements. The provisions of § 721.185 apply to this section. 80 FR 32013 , June 5, 2015