Section 721.11415 - Phosphonium, tributylmethyl-, iodide (1:1)(a)Chemical substance and significant new uses subject to reporting.(1) The chemical substance identified as phosphonium, tributylmethyl-, iodide (1:1) (PMN P-18-92, CAS No. 1702-42-7) 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. It is a significant new use to manufacture, processing or use of the PMN substance in a manner that results in inhalation exposure.(ii)Release to water. Requirements as specified in § 721.90(a)(4), (b)(4), and (c)(4) where N=56.(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 (c), (i), and (k) 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.85 FR 45326, July 28, 2020