CFR›Title 14›Chapter I›Part 91›Subpart B ContainsSubject groups General–Visual Flight RulesCorpusDaily eCFRDisplayed edition2026-04-15Last updated2026-04-15 Subpart B—Flight Rules Subject Groups General General Sections 91.101–91.149 Instrument Flight Rules Instrument Flight Rules Sections 91.167–91.199 Visual Flight Rules Visual Flight Rules Sections 91.151–91.165 SourceDocket 18334, 54 FR 34294, Aug. 18, 1989, unless otherwise noted. Previous Appendix G to Part 91 Appendix G to Part 91—Operations in Reduced Vertical Separation Minimum (RVSM) Airspace Next I Subpart I—Operating Noise Limits