Our dog travels in a large plastic kennel on the folded down drivers side seat right behind the driver. As you pull into the checkpoint, roll your window down so the crossing official can see the dog. Hand them a current copy of the rabies vaccine record from your vet right with your passports. Answer the questions accurately and succinctly. This has always worked for us, we’ve never been delayed due to the dog. Most common question “Does he hunt?” He is a hunting dog. Twenty eight crossings, 14 each way, in 5 years, all to Canada. Big,tough looking US border guard with a mullet, peered into the seat behind me. “Is that a puppy dog” he said. Cracked me up as we drove away.
Iowa Dave