Section 721.338 - Certain salts of an acrylate copolymer(a)Chemical substance and significant new uses subject to reporting.(1) The chemical substances identified as 2-propenoic acid, polymer with 2-propenamide, ammonium salt (PMN P-00-0333; CAS No. 55554-55-7) and generically as salt of an acrylate copolymer (PMN P-00-0334) are 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 (v)(2), (w)(2), and (x)(2) .(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), (b), (c), and (i) are applicable to manufacturers, importers, and processors of this substance.(2)Limitations or revocation of certain notification requirements. The provisions of § 721.185 apply to this section. 68 FR 15079 , Mar. 28, 2003, as amended at 79 FR 34636 , June 18, 2014