CFR›Title 30›Chapter I›Part 90›Subpart A ContainsSections 90.1–90.3CorpusDaily eCFRDisplayed edition2026-05-08Last updated2026-05-08 Subpart A—General Sections 90.1 § 90.1 Scope. 90.2 § 90.2 Definitions. 90.3 § 90.3 Part 90 option; notice of eligibility; exercise of option. Source79 FR 24988, May 1, 2014, unless otherwise noted. Next B Subpart B—Dust Standards, Rights of Part 90 Miners