I have been conditionally approved for the U.S. CBP's Global Entry program. From what I understand, there is an enrollment through which you can do your interview upon arriving back in the U.S. from an international flight. This program also appears to be available at the major Canadian airports.
I'm planning on flying roundtrip from SFO (San Francisco) to YVR (Vancouver). Will it be possible for me to enroll upon arrival? From what I understand, flights between the U.S. and Canada usually depart from/arrive at the domestic terminals in the U.S.
Would I enroll upon arriving in YVR? Would I enroll as I go through customs exiting Canada at YVR? Or would I enroll when I land back in SFO? Or is it just not possible to do enrollment upon arrival for U.S.-Canada flights?