Section 721.11593 - 1-Butanamine, N-butyl-N-[(triethoxysilyl)methyl]-(a)Chemical substance and significant new uses subject to reporting.(1) The chemical substance identified as 1-butanamine, N-butyl-N-[(triethoxysilyl)methyl]- (PMN P-19-53; CAS No. 35501-23-6) is subject to reporting under this section for the significant new uses described in paragraph (a)(2) of this section. The requirements of this section do not apply to quantities of the substance after they have been completely reacted (cured).(2) The significant new uses are: (i)Protection in the workplace. Requirements as specified in § 721.63(a)(1) and (3), and (c) . When determining which persons are reasonably likely to be exposed as required for § 721.63(a)(1) , engineering control measures (e.g., enclosure or confinement of the operation, general, and local ventilation) or administrative control measures (e.g., workplace policies and procedures) shall be considered and implemented to prevent exposure, where feasible.(ii)Industrial, commercial, and consumer activities. Requirements as specified in § 721.80(f) and (o) . It is a significant new use to process and use the substance other than in a liquid formulation.(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 (e), and (i) are applicable to manufacturers and processors of this substance.(2)Limitation or revocation of certain modification requirements. The provisions of § 721.185 apply to this section. 87 FR 73946 , Dec. 2, 2022