{"data":{"id":"us/40-cfr-721.4610","jurisdiction":"us","citation":"40 CFR 721.4610","heading":"Mixed metal oxides (generic).","body":"(a) Chemical substance and significant new uses subject to reporting. (1) The chemical substance identified generically as mixed metal oxides (PMN P-98-0002) is subject to reporting under this section for the significant new use described in paragraph (a)(2) of this section.\n(2) The significant new uses are:\n(i) Protection in the workplace. Requirements as specified in § 721.63 (a)(4), (a)(5)(i), (a)(6)(i), (b) (concentration set at 0.1 percent), and (c). As an alternative to the respiratory requirements listed here, a manufacturer, importer, or processor may choose to follow the NCEL provisions listed in the TSCA 5(e) consent order for this substance. The NCEL is 0.05 mg/m 3 as an 8-hour time weighted average verified by actual monitoring data.\n(ii) Hazard communication program. Requirements as specified in § 721.72 (a), (b), (c), (d), (e) (concentration set at 0.1 percent), (f) (g)(1)(ii), (g)(1)(vii), (g)(2)(ii), (g)(2)(iii), and (g)(2)(iv).\n(iii) Industrial, commercial, and consumer activities. Requirements as specified in § 721.80(q).\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. The following recordkeeping requirements are applicable to manufacturers, importers, and processors of this substance, as specified in § 721.125 (a), (b), (c), (d), (f), (g), (h), and (i).\n(2) Limitations or revocation of certain notification requirements. The provisions of § 721.185 apply to this section.\n(3) Determining whether a specific use is subject to this section. The provisions of § 721.1725(b)(1) 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":"ba96ecfb89bf74cf99db36c4b120b39290458f7580342b49869d7317e6a5a5d8","source_id":"us-cfr","stale":true,"prev":"us/40-cfr-721.4600","next":"us/40-cfr-721.4620"},"notice":"GroundRules: Original legal text. Not legal advice."}