List of Non-Federal Systems
Systems regulated by the Non-Federal Program include, but are not limited to:
- (ALS) Approach Lighting Systems that are part of a precision approach.*
- (AWOS) Automated Weather Observing Systems
- (DME) Distance Measuring Equipment
- (GBAS) Ground Based Augmentation Systems
- (GS) Glide Slopes
- (LOC) Localizers
- (NDB) Non-Directional Beacons
- (OM) Outer Marker Beacons, as well as Middle & Inner Markers
- (RTS) Remote Tower Systems
- (RVR) Runway Visual Ranges
- (ILS) Instrument Landing Systems
- (VOR) VHF Omni-Directional Ranges
* The Non-Federal Program regulates four types ALS, all of which are associated with precision instrument approaches. They are: ALSF-2, MALS, MALSF, and MALSR.
Non-Federal systems may also include certain types of:
- Automation equipment
- Communications equipment
- Surveillance equipment
Last updated: Friday, May 19, 2023