Most DMV offices require a signed proof of sales receipt for vehicle transactions before registering a car.

In some states, both the seller (or lessor) and the buyer (or lessee) must sign it.

A vehicle sales receipt must include the make, model, year, color, and odometer reading. Some states may require extra details, such as the last inspection date or, in New Hampshire, the number of cylinders.

An Odometer Disclosure Statement is required at the DMV, along with the sales receipt or bill of sale for registration.