"C J Campbell" wrote in message
...

See AIM 1-1-20c.7. WAAS may be used as a stand-alone
system anywhere in the NAS.

GPS cannot substitute for a VOR.


Odd, then, that FAAO 7110.65 allows controllers to issue airways routing to
GPS-equipped aircraft when the navaids defining those airways are not in
service.


FAA Order 7110.65P Air Traffic Control

Chapter 4. IFR

Section 4. Route Assignment

4-4-4. ALTERNATIVE ROUTES

When any part of an airway or route is unusable because of NAVAID status,
clear aircraft other than /E, /F, /G, or /R, via one of the following
alternative routes:

a. A route depicted on current U.S. Government charts/publications. Use
the word "substitute" immediately preceding the alternative route in issuing
the clearance.

b. A route defined by specifying NAVAID radials, courses, or azimuths.

c. A route defined as direct to or between NAVAIDs.

d. Vectors.

NOTE-
Inform area navigation aircraft that will proceed to the NAVAID location
of the NAVAID outage.