CFR›Title 40›Chapter I›Part 281›Subpart D ContainsSections 281.40–281.43CorpusDaily eCFRDisplayed edition2026-04-27Last updated2026-04-27 Subpart D—Adequate Enforcement of Compliance Sections 281.40 § 281.40 Requirements for compliance monitoring program and authority. 281.41 § 281.41 Requirements for enforcement authority. 281.42 § 281.42 Requirements for public participation. 281.43 § 281.43 Sharing of information. Previous C Subpart C—Criteria for No Less Stringent Next E Subpart E—Approval Procedures