BY ORDER OF THE SECRETARY OF THE AIR FORCE AIR FORCE ...

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AFMAN 11-217V1 3 JANUARY 2005
7.11.3.2. Terminal. RNAV in the terminal area consists of both approach and
departure procedures. RNAV equipment may be used as the sole source of
navigation information for instrument approaches in suitably equipped and certified
aircraft. RNAV approaches must only be retrieved from an aircraft database and not
be manually entered. MAJCOMs certify the capabilities of their aircraft in
accordance with civil standards as outlined in various Technical Standard Order’s
(TSO) and Advisory Circular’s (AC).
7.11.4. Aircrew Responsibilities. Although RNAV routes (including random routes)
may be filed at any time, aircrews should have alternate routing and contingency actions
planned. ATC considers radar coverage capability and compatibility with traffic flow
and volume prior to assigning random RNAV routes. Although ATC provides radar
separation on RNAV routes in the national airspace system (NAS), navigation and
collision avoidance on any RNAV route remains the responsibility of the aircrew.
Aircrews must consider the limits of RNAV equipment certification prior to accepting
clearance for RNAV routes or RNP airspace. Aircrews should also take advantage of
opportunities to update the navigation system while en route. In addition, crews should
monitor RNAV equipment performance and be prepared to return to an alternate means
of navigation should equipment malfunction require.
7.12. Navigation using GPS. The ICAO has adopted “Global Navigation Satellite System
(GNSS)” as an umbrella term to identify any satellite navigation system where the user
performs onboard position determination from satellite information. Currently there are only
two GNSS systems that are recognized by the International Frequency Registration Board
(IFRB): the GPS developed by the United States and the Global Orbiting Navigation
Satellite System (GLONASS) now under development by the Federation of Russia.
7.12.1. Aviation GPS Requirements for IFR navigation. In order to be used for IFR
navigation, GPS equipment must meet minimum functional requirements, and comply
with approved standards for accuracy, integrity, availability, and continuity. Compliance
with FAA TSOs and ACs are the primary means of ensuring these standards are met.
AFI 11-202Volume 3, General Flight Rules, lists FAA TSOs and ACs applicable to GPS
User Equipment (UE).
7.12.2. Properly certified GPS equipment may be used as a primary means of IFR
navigation in remote/oceanic areas, and may be used as a supplemental means of IFR
navigation for domestic enroute, terminal, and some instrument approach operations.
Except in remote/oceanic areas, aircraft using GPS for IFR navigation must be
equipped with an approved and operational alternate means of navigation appropriate
to the flight (INS, VOR, TAC, etc.).
7.12.2.1. NOTE. Some countries do not allow the use of GPS (either SPS or PPS) for
IFR navigation in their sovereign airspace. Consult the appropriate FLIP Area
Planning (AP) document for details.
7.12.2.2. NOTE. IFR navigation using PPS GPS. Without host nation approval,
PPS may not be used for IFR navigation in civil airspace, including the US
National Airspace System (NAS). For discussion on GPS PPS, see Chapter 6.