Section 721.5400 - 3,6,9,12,15,18,21-Heptaoxatetratriaoctanoic acid, sodium salt(a)Chemical substance and significant new uses subject to reporting.(1) The chemical substance identified as 3,6,9,12,15,18,21-heptaoxatetratriaoctanoic acid, sodium salt is subject to reporting under this section for the significant new uses described in paragraph (a)(2) of this section.(2) The significant new use is: (i)Release to water. Requirements as specified in § 721.90 (a)(1), (b)(1), and (c)(1) .(b)Specific requirements. The provisions of subpart A of this part apply to this section except as modified by this paragraph. (1)Recordkeeping. The following recordkeeping requirements are applicable to manufacturers, importers, and processors of this substance, as specified in § 721.125 (a), (b), (c), and (k) .(2)Limitations or revocation of certain notification requirements. The provisions of § 721.185 apply to this significant new use rule.56 FR 19237, Apr. 25, 1991. Redesignated at 58 FR 29946, May 24, 1993, as amended at 58 FR 34204, June 23, 1993