Originally Posted by
xienon
I had a one way to YYZ a few months ago and I just picked a car from the aisle (mind you, that day, there were only 2 cars on the aisle). No one asked me if I was one-waying the car. I don't think EWR has a special Canadian cars section anyways, the fleet these days is way too tight to be setting cars aside.
FYI: at the border, they asked me for proof that I was the renter of the car but I didn't have a printed contract. However, they just let me through. So you may want to ask for the contract to be printed out.
I would think the proof on the national app(lists your name, current vehicle plate number etc) should be sufficient since they accept digital proof of vaccination as well