CFR›Title 30›Chapter I›Part 74›Subpart A ContainsSections 74.1–74.2CorpusDaily eCFRDisplayed edition2026-04-24Last updated2026-04-24 Subpart A—General Sections 74.1 § 74.1 Purpose. 74.2 § 74.2 Definitions. Next B Subpart B—Approval Requirements for Coal Mine Dust Personal Sampler Unit