I believe you apply and get sort of preapproved. Then if there is no consulate or any enrollment centers near you, you do the interview and final part the next time you cross the border.For Nexus, don’t you have to interview in person near the border? That makes it tough for out of town folks to obtain.
Lots of people here at work have it and say it was pretty easy to apply and get. And crossing the border takes minutes now.