for new ATVs, you can use as acceptable proof of ownership the Manufacturer's Certificate of Origin (MCO) or the Manufacturer's Statement of Origin (MSO).
And what can I use as proof of ownership for a trailer model 1976?
for that case, you can use either the NY State Certificate of Title (original or a certified copy) or a acceptable proof of ownership from any other state.
Ok, now I need to know about the proof of ownership for snowmobiles purchased from a dealer.