itat, you will need a passport or enhanced drivers license to get back into the U.S.. I believe the Canadian side is not as strict and may just accept a regular drivers license. Last time I tried to come back to the U.S. from visiting my SIL in Stoney Creek, Ont. and I only brought my birth certificate and license we got pulled over, stuck for over three hours, my wife and I were separated and questioned and I was treated like a pure criminal. Got nothing to do for a day, try entering the U.S. without a passport or enhanced license, especially not being from New York state, aka Buffalo/Western NY area where residents come and go daily to Canada, and towing an RV.
2011 Georgetown 330TS
RAV4 on MasterTow Dolly