CFR›Title 30›Chapter I›Part 74›Subpart D ContainsSections 74.12–74.18CorpusDaily eCFRDisplayed edition2026-04-24Last updated2026-04-24 Subpart D—General Requirements for All Devices Sections 74.12 § 74.12 Conduct of tests; demonstrations. 74.13 § 74.13 Applications. 74.14 § 74.14 Certificate of approval. 74.15 § 74.15 Approval labels. 74.16 § 74.16 Material required for record. 74.17 § 74.17 Changes after certification. 74.18 § 74.18 Withdrawal of certification. Previous C Subpart C—Requirements for Continuous Personal Dust Monitors