Section 721.11775 - Alkanes, C4-8-branched and linear(a)Chemical substance and significant new uses subject to reporting.(1) The chemical substance identified as alkanes, C4-8-branched and linear (PMN P-21-141; CAS RN 2529890-37-5) 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)Protection in the workplace. Requirements as specified in § 721.63(a)(3) and (7), (b), and (c) . For purposes of § 721.63(b) , the concentration is set at 0.1%.(ii)Hazard communication. Requirements as specified in § 721.72(a) .(iii)Industrial, commercial, and consumer activities. It is a significant new use to manufacture, process, or use the substance other than for use as a transportation fuel, refinery feedstock, or fuel blending additive.(b)Specific requirements. The provisions of subpart A of this part apply to this section except as modified by this paragraph (b). (1)Recordkeeping. Recordkeeping requirements as specified in § 721.125(a) through (i) are applicable to manufacturers, importers, and processors of this substance.(2)Limitation or revocation of certain notification requirements. The provisions of § 721.185 apply to this section. 88 FR 87351 , Dec. 18, 2023