CFR›Title 40›Chapter I›Part 97›Subpart D ContainsSections 97.30–97.31CorpusDaily eCFRDisplayed edition2026-04-15Last updated2026-04-15 Subpart D—Compliance Certification Sections 97.30 § 97.30 Compliance certification report. 97.31 § 97.31 Administrator's action on compliance certifications. Previous CCCCC Subpart CCCCC—CSAPR SO<sub>2</sub> Group 1 Trading Program Next DDDDD Subpart DDDDD—CSAPR SO<sub>2</sub> Group 2 Trading Program