Visit a DMV (Department of Motor Vehicles) in the county in which you live and bring the following documentation:

• Bill of Sale: Required for a title-exempt vehicle purchased in a private sale.
• Certificate of Title: Required for a vehicle purchased in a private sale. For a vehicle purchased from a New Hampshire dealership, bring the certificate of title or the blue copies of the title application.
• Proof of Residency: Required if residency has not already been established by your town or city.

Out-of-State Purchase

• Manufacturer’s Statement of Origin (MSO): Required if the vehicle purchased from an out-of-state dealership is brand new.
• New Hampshire Title Application from the Lienholder
• Title from the Dealership

Notes

• Registration in New Hampshire is a two-part process.
• If you have an out-of-state loan or are leasing the vehicle, see the 60-day temporary plate process.
• For a title-exempt vehicle purchased in a private sale, you must also provide proof of VIN.

Source: New Hampshire Division of Motor Vehicles (Vehicle Registrations)

To register a watercraft, you can elect to mail in the required information or gather the following documentation to hand-deliver at your nearest New Hampshire DMV facility:

• Bill of Sale, including the date of sale, vessel description, and the signatures and addresses of both the buyer and seller.
• Boat Registration Application (RDMV 612)
• Payment for registration fees.
• Photo identification.
• Verification of Vessel Identification, if the boat is homemade or does not have a proper Hull Identification Number.

Out-of-State Purchase

• Out-of-state registration, if available or needed to support proof of ownership.

A vessel registered in another state may be used on New Hampshire waters for 30 consecutive days or less without New Hampshire registration. After that, New Hampshire registration is required.

Source: New Hampshire DMV (Boat Registrations; Boat Registration Application)

A new owner is not required to register a firearm in New Hampshire.