{"data":{"id":"us/40-cfr-721.3550","jurisdiction":"us","citation":"40 CFR 721.3550","heading":"Dipropylene glycol dimethyl ether.","body":"(a) Chemical substances and significant new uses subject to reporting. (1) The chemical substance identified as dipropylene glycol dimethyl ether (PMN P-93-507; CAS No. 111109-77-4) is subject to reporting under this section for the significant new uses described in paragraph (a)(2) of this section. This class 2 substance is exempt from the notification requirements of this rule if it contains less than 5 percent by weight of the specific isomer, propane, 2,2′-oxybis[1-methoxy- (CAS No. 189354-80-1), which is one of the possible products of the manufacturing process for PMN P-93-507.\n(2) The significant new uses are:\n(i) Protection in the workplace. Requirements as specified in § 721.63 (a)(1), (a)(2)(i), and (a)(3).\n(ii) Industrial, commercial, and consumer activities. Requirements as specified in § 721.80(o).\n(b) Specific requirements. The provisions of subpart A of this part apply to this section except as modified by this paragraph.\n(1) Recordkeeping requirements. The following recordkeeping requirements specified in § 721.125 (a), (b), (c), (d), and (e) are applicable to manufacturers, importers, and processors of this substance.\n(2) Limitations or revocation of certain notification requirements. The provisions of § 721.185 apply to this section.","path":["Title 40—Protection of Environment","CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY","SUBCHAPTER R—TOXIC SUBSTANCES CONTROL ACT","PART 721—SIGNIFICANT NEW USES OF CHEMICAL SUBSTANCES","Subpart E—Significant New Uses for Specific Chemical Substances"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-40.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:26:04Z","sha256":"d225257cfc01fb1ef41c3af917793bb90873ba472c48467399eaac8002ea757d","source_id":"us-cfr","stale":true,"prev":"us/40-cfr-721.3520","next":"us/40-cfr-721.3560"},"notice":"GroundRules: Original legal text. Not legal advice."}