What requires a title in New Hampshire?

Any Motor Vehicle that is 2000 or newer is titled forever, trailers over 3000 lbs, any vehicle that has 3 axels or more.

The sellers MUST fill out
-Buyers name & address
-Date of sale
-Odometer reading
-Sellers signature & printed name
 
Buyers Must 
-Sign and print their names
 
See Sample Below
Sellers are responsible for sections 1-5
Buyers are responsible for sections 6-7Image of back of title