On Sunday, September 1, 2019 at 9:58:48 PM UTC-7, Mike Reid wrote:
I guess it's because I had the proper paperwork with me, but when I towed a glider from the lower 48 to Alaska in May, neither Canadian nor US customs asked for any paperwork for the glider or trailer. YMMV

Mike

Mike, what paperwork was needed to move a US SH glider and Cobra trailer from the US to a new owner in Canada?