Originally Posted by Philip Jones
Maybe I can jump onto this thread to ask a related question. If one is enrolled in NEXUS, is one able to use the NEXUS lane while towing the Airstream?
Yes you can use the NEXUS lane.
While crossing at the tunnel from Windsor to Detroit I had to use the truck lane instead of the NEXUS lane because of height restrictions. It was easy as there were no trucks at the time. At other border crossing the usual NEXUS lane has been fine.
From time to time the border agent will want to look inside the trailer, so have the key ready, but I have never had to go into secondary.