Subpart I. Subpart I—Interim Standard Microwave Landing System (ISMLS)

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