Originally Posted by
YYCOllie
Is it true that you can subsitute NEXUS for a Passport at Land/Water crossings? (i.e. not Air?)
Maybe for declaration purposes you can, but I would have the Passport with you. Not only because it's a good idea, but also they are explicit, as mentioned before, that you must carry both.
I have gone though the Detroit/Windsor Tunnel and regularly get asked for my Passport in the NEXUS lane (this only happened to me on the U.S. side).