In article ,
(Snowbird) writes:

Someone is correct.

The information is in the AIM, 1-1-21 f. 6.

The regulatory documents authorizing this are the approved flight
manual supplement installed by 337 along with the GPS, and
a NOTAM published by the FAA several years back, and available
from your local FSDO or from AOPA (Gen5, published 7-16-98). The
NOTAM is the principle regulatory basis authorizing this. It
is "effective until further notice".

Guess this aplies only to US. Does anyone know if it is alos true in Canada?

Chuck