How to register a boat in Rhode Island

Who Needs to Register Their Boat

Rhode Island law requires registration for all motorized boats and sailboats over 14 feet in length that operate on state waters, including Narragansett Bay, the Providence River, and inland lakes and ponds. This includes personal watercraft like jet skis, kayaks with motors, and even small dinghies with outboard engines. If your boat is documented with the U.S. Coast Guard, you still need to obtain a Rhode Island certificate of number to legally operate in state waters. Non-powered vessels under 14 feet, racing shells, and boats that never leave dry dock are exempt from registration requirements.

Required Documents and Information

When registering your boat with the DEM, you'll need several key documents. First, bring proof of ownership such as a bill of sale, manufacturer's certificate of origin, or previous registration from another state. If you purchased the boat from a dealer, they should provide the manufacturer's statement of origin. For used boats, a notarized bill of sale is essential. You'll also need to provide a valid Rhode Island driver's license or state ID, and if the boat has an existing hull identification number (HIN), you must include that on your application. For boats purchased from out of state, you may need to present documentation that sales tax was paid in the other state, or you'll owe Rhode Island's 7% sales tax on the purchase price.

How to Submit Your Registration Application

The DEM offers three convenient ways to register your boat. The online portal at dem.ri.gov is the fastest method, allowing you to upload documents and pay by credit card, typically receiving your registration within 7-10 business days. You can also mail your completed application, supporting documents, and payment to the DEM Division of Law Enforcement at 235 Promenade Street, Providence, RI 02908. For in-person service, visit the DEM headquarters in Providence during business hours (Monday through Friday, 8:30 AM to 4:00 PM). The Great Island Office at 2721 South County Trail in East Greenwich also accepts boat registrations. Expect slightly longer wait times during the spring months from March through May when boating season begins.

Registration Fees and Renewal

Rhode Island boat registration fees are based on vessel length and valid for two years. Boats under 16 feet cost $32, vessels 16 to 26 feet are $47, boats 26 to 40 feet cost $62, and vessels over 40 feet are $78. Additional fees apply if you need duplicate registration certificates ($11) or if you're transferring registration from a previous owner. You'll receive registration numbers that must be displayed on both sides of the bow in at least three-inch-high block letters, positioned to read from left to right. The validation stickers must be placed within six inches of the registration numbers. Renewal notices are mailed approximately 60 days before expiration, and you can renew online, by mail, or in person using the same methods as initial registration.

Common Mistakes to Avoid

Many boat owners make preventable errors during registration. Don't forget to remove and surrender old registration numbers from previous states before applying Rhode Island decals—operating with both is illegal. Never estimate your boat's length; measure from the tip of the bow to the stern, not including motors, swim platforms, or bowsprits, as incorrect measurements can result in wrong fee calculations. Keep your registration certificate and validation decals separate; you must carry the certificate on board while operating, but stickers belong on the boat's hull. Avoid the spring rush by registering your boat in winter months when processing times are shorter. Finally, remember that lending your boat to family or friends requires they carry the registration certificate on board, so make copies if needed.

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