To register your newly purchased vehicle, advance to an OMV (Office of Motor Vehicles) location of your choice and come supplied with:

• Bill of Sale: Notarized or invoice showing the actual sale price and vehicle description. Not required if the selling price is included on a title with a notarized assignment.
• Current Certificate of Title: Must be assigned before a notary with any lien properly released.
• Odometer Disclosure Statement: Required if the vehicle is not exempt and the back of the title does not include an odometer disclosure
• Photo Identification
• Proof of Liability Insurance Coverage
• UCC-1 Financing Statement or Other Security Agreement: Required if a lien will be recorded.
• Vehicle Application Form (DPSMV 1799)

Out-of-State Purchase

• Notarization rules may differ: If the sale occurs in a state that does not require notarization, the invoice does not have to be notarized.

Source: Louisiana Office of Motor Vehicles (Used Title & Registration)

Louisiana requires motorized vessels, sailboats 12 feet or longer, and non-motorized houseboats used on Louisiana waters to be registered with the Louisiana Department of Wildlife and Fisheries. New registrations and transfers can be submitted in person at LDWF Headquarters in Baton Rouge or by mail.

• Affidavit of Ownership of a Non-Motorized Houseboat, if registering a non-motorized houseboat.
• Application for Boat Inspection, if the boat is homemade, has no HIN, or has an incorrect HIN.
• Bill of Sale of Boat/Motor, if transferring ownership.
• Boat Registration / Boat and Motor Title Application
• Copy of dealer invoice, if purchased new from a dealer.
• Original Manufacturer’s Statement of Origin, if the boat is new.
• Payment for registration/title fees, and inspection fees if applicable.
• Proof of Louisiana state and local taxes paid, or Tax Payment Certification Form (R-1331), if applicable.
• Title, if the boat was previously titled, financed, homemade, or otherwise required to be titled.

Out-of-State Purchase

• Invoice from the dealer or Bill of Sale, if purchased from an out-of-state dealer.
• Proof of ownership from the titled/registered owner to the dealer, if purchased from an out-of-state dealer.
• Title and/or registration, if the boat was previously titled or registered outside of Louisiana.

Out-of-state boaters may operate a vessel with valid out-of-state registration on Louisiana waters for up to 90 consecutive days.

Source: Louisiana Department of Wildlife and Fisheries (Title or Register Your Boat)

There is no statewide requirement for a new firearm owner to register a firearm.