Section 721.11380 - Silsesquioxanes, 3-(dimethyloctadecylammonio) propyl Me Pr, polymers with silicic acid (H[4] SiO[4]) tetra-Et ester, (2-hydroxyethoxy)- and methoxy-terminated, chlorides(a)Chemical substance and significant new uses subject to reporting.(1) The chemical substance identified as silsesquioxanes, 3-(dimethyloctadecylammonio) propyl Me Pr, polymers with silicic acid (H4SiO4) tetra-Et ester, (2-hydroxyethoxy)- and methoxy-terminated, chlorides. (P-19-24, CASRN 2231249-14-0) 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 use the substance other than as an asphalt additive or asphalt emulsion additive. It is a significant new use to use the chemical substance as an asphalt additive in a manner that results in inhalation exposure to respirable particles or droplets containing the chemical substance.(ii)Release to water. Requirements as specified in § 721.90(a)(4), (b)(4), and (c)(4) where N=8.(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 46555 , Aug. 3, 2020, as amended at 85 FR 57757 , Sept. 16, 2020 85 FR 46555 , 10/2/2020; 85 FR 57757 , 10/2/2020