CFR›Title 40›Chapter I›Part 121›Subpart C ContainsSections 121.16–121.17CorpusDaily eCFRDisplayed edition2026-04-27Last updated2026-04-27 Subpart C—Certification by the Administrator Sections 121.16 § 121.16 When the Administrator certifies. 121.17 § 121.17 Public notice and hearing. Previous B Subpart B—Neighboring Jurisdictions Next D Subpart D—Review and Advice