Jag har ännu inte ett definitivt svar, men jag har kontaktat CBP och det verkar som om de inte har någon officiell policy på detta. Kraven verkar vara enligt det särskilda inskrivningscentrets eget gottfinnande.
Här är deras första svar:
You can log into your account and register any vehicle you wish.
If you register your vehicle in SENTRI as part of your initial application, there is no fee for registering your vehicle. If you wish to register another vehicle, you must pay a $42 vehicle registration fee. There is no longer a requirement to visit an Enrollment Center for a vehicle inspection when registering a new vehicle.
You can register up to 4 vehicles for use in a SENTRI lane, and you can have up 8 SENTRI members registered to a vehicle. Approved SENTRI members are able to use the Global Entry kiosks when re-entering the U.S. by air and TSA Precheck, as long as they meet the citizenship requirements for Global Entry and their fingerprints and passports are on file. They are not, however, entitled to any benefits under the NEXUS program through their SENTRI membership.
Det här verkade vara lite av ett generiskt svar på mig, och även om de nämner "något fordon du önskar" i första raden, fortsätter de sedan med "ditt fordon" snarare än något fordon, så jag frågade dem att klargöra.
Deras svar på min begäran om förtydligande:
You will need to call the enrollment center and ask the officers for those requirements.
Sometimes individuals have said they were told they could register vehicles with only a letter from an owner and others have stated they were told the owner had to be present when they registered the vehicle.
Jag kommer att inkludera en uppdatering när jag hör tillbaka från ett registreringscenter eller två.