The FAA plans to transition the U.S. National Airspace System (NAS) navigation infrastructure to enable performance-based navigation (PBN) as part of the Next Generation Air Transportation System (NextGen). The FAA plans to transition from defining airways, routes and procedures using VHF Omni-directional Range (VOR) and other legacy navigation aids towards a NAS based on Area Navigation (RNAV) everywhere and Required Navigation Performance (RNP) where ben-eficial. Such capabilities will be enabled largely by the Global Positioning System (GPS) and its augmentations such as the Wide Area Augmentation System (WAAS) and Ground Based Aug-mentation System (GBAS). As a result of this transition, the need for ground-based navigation services will diminish, and the number of federally provided ground-based facilities will be re-duced accordingly, but with sufficient time for users to equip with SATNAV avionics.
|Type of Operation||Guidance Materials||Overview Presentations||Approval Mechanism||Additional Information|
|GLS Ground Based Augmenta-tion System (GBAS) Landing System||AC-120-29A||OPSEC / MSPEC / LOA Guidance C052||
Engineering Development Services Group LAAS
NAS RNP Resource Guide (PDF)
|RNAV Visual Flight Procedure||Order 8260.55||NAS RNP Resource Guide (PDF)|
|RNAV Systems on Conventional Routes||AC 90-108||OPSPEC / MSPEC / LOA guidance B034||NAS RNP Resource Guide (PDF)|
|B-RNAV and P-RNAV||AC 90-96A||OPSPEC / MSPEC / LOA guidance B034||NAS RNP Resource Guide (PDF)|