CFR›Title 30›Chapter I›Part 90›Subpart D ContainsSections 90.300–90.301CorpusDaily eCFRDisplayed edition2026-04-15Last updated2026-04-15 Subpart D—Respirable Dust Control Plans Sections 90.300 § 90.300 Respirable dust control plan; filing requirements. 90.301 § 90.301 Respirable dust control plan; approval by District Manager; copy to part 90 miner. Source79 FR 24993, May 1, 2014, unless otherwise noted. Previous C Subpart C—Sampling Procedures