Originally Posted by
Xyzzy
Starting Feb. 25, 2025, Canadians (and any alien coming to the US) staying l

nger than 30 days have to register with USCIS.
Details here. Regarding NEXUS specifically, that page also states this:
Aliens who have already registered include ... Aliens issued Border Crossing Cards.
Thanks for links. Read them twice. Seems to be silent on Nexus. Is there anywhere it says Nexus is a border crossing card?