CFR›Title 14›Chapter I›Part 171›Subpart D ContainsSection 171.61CorpusDaily eCFRDisplayed edition2026-04-15Last updated2026-04-15 Subpart D—True Lights Sections 171.61 § 171.61 Air navigation certificate: Revocation and termination. Previous C Subpart C—Instrument Landing System (ILS) Facilities Next E Subpart E—General