(2)
Both the GPS constellation and the required airborne equipment must be providing the levels of availability, accuracy, continuity of function, and integrity required for the operation.

(3)
For the certificate holder using aircraft other than those equipped with a multi-sensor flight management system (FMS), the flightcrew must have successfully completed the certificate holder’s approved training program curriculum segments for GPS and/or GPS WAAS operations, as applicable, and the pilot-in-command and the second-in-command must be checked for competency by an authorized check airman or FAA inspector in instrument approach operations using each aircraft type and GPS combination. (Single pilot operators conducting operations under 14 CFR part 135 who are issued OpSpec A040 and who do not have an approved training program must be checked for competency by an FAA inspector in instrument approach operations using GPS/GPS WAAS, as applicable, in each aircraft type and GPS combination).

(4)
During the initial 6 months of operation with a particular aircraft type and GPS combination (other than aircraft equipped with a multi-sensor FMS) the certificate holder shall not use IFR approach and landing minimums lower than 200 feet and 1/2 statute mile above the lowest authorized MDA and visibility/ runway visual range (RVR) minimums using GPS or GPS WAAS, as applicable.

(5)
Alternate Airport GPS WAAS Usage. Pilots may plan to use any instrument approach authorized for use with GPS WAAS avionics at a required alternate if the aircraft is equipped with such equipment certified in accordance with Technical Standard Order (TSO) C-145a/C-146a.  This flight planning, however, must be based on flying the RNAV (GPS) (or RNAV (GNSS) for foreign approaches) LNAV minima line, or the minima on a GPS approach procedure or conventional approach procedure with “… or GPS” in the title.  Upon arrival at an alternate, if the GPS WAAS navigation system indicates that LNAV/VNAV or LPV service is available, vertical guidance may be used to complete the approach using the displayed level of service.