Part 171 - NON-FEDERAL NAVIGATION FACILITIES

Subpart A – VOR Facilities

• Sec. 171.1 - Scope.
• Sec. 171.3 - Requests for IFR procedure.
• Sec. 171.5 - Minimum requirements for approval.
• Sec. 171.7 - Performance requirements.
• Sec. 171.9 - Installation requirements.
• Sec. 171.11 - Maintenance and operations requirements.
• Sec. 171.13 - Reports.

Subpart B – Nondirectional Radio Beacon Facilities

• Sec. 171.21 - Scope.
• Sec. 171.23 - Requests for IFR procedure.
• Sec. 171.25 - Minimum requirements for approval.
• Sec. 171.27 - Performance requirements.
• Sec. 171.29 - Installation requirements.
• Sec. 171.31 - Maintenance and operations requirements.
• Sec. 171.33 - Reports.

Subpart C – Instrument Landing System (ILS) Facilities

• Sec. 171.41 - Scope.
• Sec. 171.43 - Requests for IFR procedure.
• Sec. 171.45 - Minimum requirements for approval.
• Sec. 171.47 - Performance requirements.
• Sec. 171.49 - Installation requirements.
• Sec. 171.51 - Maintenance and operations requirements.
• Sec. 171.53 - Reports.

Subpart D – True Lights

• Sec. 171.61 - Air navigation certificate: Revocation and termination.

Subpart E – General

• Sec. 171.71 - Materials incorporated by reference.
• Sec. 171.73 - Alternative forms of reports.
• Sec. 171.75 - Submission of requests.

Subpart F – Simplified Directional Facility (SDF)

• Sec. 171.101 - Scope.
• Sec. 171.103 - Requests for IFR procedure.
• Sec. 171.105 - Minimum requirements for approval.
• Sec. 171.107 - Definition.
• Sec. 171.109 - Performance requirements.
• Sec. 171.111 - Ground standards and tolerances.
• Sec. 171.113 - Installation requirements.
• Sec. 171.115 - Maintenance and operations requirements.
• Sec. 171.117 - Reports.

Subpart G – Distance Measuring Equipment (DME)

• Sec. 171.151 - Scope.
• Sec. 171.153 - Requests for IFR procedure.
• Sec. 171.155 - Minimum requirements for approval.
• Sec. 171.157 - Performance requirements.
• Sec. 171.159 - Installation requirements.
• Sec. 171.161 - Maintenance and operations requirements.
• Sec. 171.163 - Reports.

Subpart H – VHF Marker Beacons

• Sec. 171.201 - Scope.
• Sec. 171.203 - Requests for IFR procedure.
• Sec. 171.205 - Minimum requirements for approval.
• Sec. 171.207 - Performance requirements.
• Sec. 171.209 - Installation requirements.
• Sec. 171.211 - Maintenance and operations requirements.
• Sec. 171.213 - Reports.

Subpart I – Interim Standard Microwave Landing System (ISMLS)

• Sec. 171.251 - Scope.
• Sec. 171.253 - Definitions.
• Sec. 171.255 - Requests for IFR procedures.
• Sec. 171.257 - Minimum requirements for approval.
• Sec. 171.259 - Performance requirements: General.
• Sec. 171.261 - Localizer performance requirements.
• Sec. 171.263 - Localizer automatic monitor system.
• Sec. 171.265 - Glide path performance requirements.
• Sec. 171.267 - Glide path automatic monitor system.
• Sec. 171.269 - Marker beacon performance requirements.
• Sec. 171.271 - Installation requirements.
• Sec. 171.273 - Maintenance and operations requirements.
• Sec. 171.275 - Reports.

Subpart J – Microwave Landing System (MLS)

• Sec. 171.301 - Scope.
• Sec. 171.303 - Definitions.
• Sec. 171.305 - Requests for IFR procedure.
• Sec. 171.307 - Minimum requirements for approval.
• Sec. 171.309 - General requirements.
• Sec. 171.311 - Signal format requirements.
• Sec. 171.313 - Azimuth performance requirements.
• Sec. 171.315 - Azimuth monitor system requirements.
• Sec. 171.317 - Approach elevation performance requirements.
• Sec. 171.319 - Approach elevation monitor system requirements.
• Sec. 171.321 - DME and marker beacon performance requirements.
• Sec. 171.323 - Fabrication and installation requirements.
• Sec. 171.325 - Maintenance and operations requirements.
• Sec. 171.327 - Operational records.

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