Subjgrp 6. Instrument Flight Rules
- § 91.167 - Fuel requirements for flight in IFR conditions.
- § 91.169 - IFR flight plan: Information required.
- § 91.171 - VOR equipment check for IFR operations.
- § 91.173 - ATC clearance and flight plan required.
- § 91.175 - Takeoff and landing under IFR.
- § 91.176 - Straight-in landing operations below DA/DH or MDA using an enhanced flight vision system (EFVS) under IFR.
- § 91.177 - Minimum altitudes for IFR operations.
- § 91.179 - IFR cruising altitude or flight level.
- § 91.180 - Operations within airspace designated as Reduced Vertical Separation Minimum airspace.
- § 91.181 - Course to be flown.
- § 91.183 - IFR communications.
- § 91.185 - IFR operations: Two-way radio communications failure.
- § 91.187 - Operation under IFR in controlled airspace: Malfunction reports.
- § 91.189 - Category II and III operations: General operating rules.
- § 91.191 - Category II and Category III manual.
- § 91.193 - Certificate of authorization for certain Category II operations.
- §§ 91.195-91.199 - §[Reserved]