What is required on a boat in Tennessee comes down to three things: current registration displayed on the hull, Coast Guard-approved safety gear matched to your boat’s size and engine, and an operator who meets the state’s age and education rules. The exact equipment list changes with your boat’s length and model year, and a few rules (child life jackets, boater education, no-wake zones) catch people out even when the gear is right. Here’s what you need on board and what you need to do before you leave the ramp.
Registration and Hull Numbers
Every mechanically powered vessel and every sailboat principally used in Tennessee must be registered. Mechanical propulsion includes electric trolling motors, so a canoe with a small trolling motor needs a registration too. Boats powered only by oars or paddles are exempt. Tennessee does not title boats, so your Certificate of Number is the primary proof of legal registration.1Tennessee Wildlife Resources Agency. Boating in Tennessee
You apply for the Certificate of Number through a county clerk’s office or through the dealer that sold you the boat, and you’ll need proof that sales tax has been paid.1Tennessee Wildlife Resources Agency. Boating in Tennessee Once registered, the identification number must appear on each side of the bow in block characters at least three inches high, in a color that contrasts with the hull, and readable from left to right. If the hull’s shape makes a direct application hard to see, the number goes on a backing plate attached to the forward half of the vessel so it reads from both sides.2Legal Information Institute. Tennessee Compilation of Rules and Regulations 1660-02-02-.02 – Display
Life Jackets and Throwable Devices
Every boat must carry one U.S. Coast Guard-approved wearable personal flotation device for each person on board or being towed. Vessels 16 feet or longer also need one Coast Guard-approved throwable device (a ring buoy or seat cushion) kept where someone can reach it immediately.
Children 12 and younger must actually wear a Coast Guard-approved PFD any time they’re on the open deck of a recreational vessel, unless the boat is anchored, moored, or sitting on the bottom. Having the jacket on board is not enough for kids this age; it has to be on them.
One catch for personal watercraft: inflatable PFDs do not count. The Tennessee Wildlife Resources Agency states that inflatable devices of any kind are not acceptable for PWC use.3Tennessee Wildlife Resources Agency. Boating Regulations and Safety Concerns
Fire Extinguishers
Motorboats with enclosed compartments where fuel vapors could collect must carry Coast Guard-approved fire extinguishers. The count depends on length, and the classification depends on model year. Boats built in 2018 or later must carry 5-B or 20-B rated extinguishers with a date stamp. Boats built between 1953 and 2017 can carry either the newer 5-B/20-B units or the older B-I/B-II units, as long as they’re in good and serviceable condition. One 20-B can substitute for two 5-Bs.4U.S. Coast Guard Boating Safety. Fire Extinguishers Requirements for the Recreational Boater FAQ
Minimum portable extinguishers by length, assuming no fixed suppression system in the engine compartment:
- Under 26 feet: one 5-B
- 26 to under 40 feet: two 5-B
- 40 to 65 feet: three 5-B
If your boat has a fixed fire suppression system in the machinery space, you can carry one fewer portable than the minimums above. Boats under 26 feet with a fixed system need no portable extinguisher at all.4U.S. Coast Guard Boating Safety. Fire Extinguishers Requirements for the Recreational Boater FAQ
Navigation Lights, Sound Signals, and Ventilation
Any boat operating between sunset and sunrise, or during restricted visibility like fog, must display the appropriate navigation lights. The configuration depends on vessel type and size, but at minimum you need red and green sidelights and a white stern light, or an all-around white light on smaller boats.
Vessels under 39 feet 4 inches (12 meters) must carry a sound-signaling device capable of producing an efficient blast. Larger vessels need both a bell and a powered whistle or horn.
Gasoline-powered boats with enclosed engine or fuel tank compartments must have a ventilation system. Boats built after 1980 with enclosed gasoline engines also need a powered exhaust blower.
Boater Education Card
If you were born after January 1, 1989, you cannot legally operate a vessel with more than 8.5 horsepower on Tennessee waters unless you’ve passed a NASBLA-approved boating safety exam and carry the TWRA-issued wallet card. The alternative is to have someone on board who is 18 or older and who either holds the certification or was born on or before January 1, 1989, and that person must be able to take immediate control of the vessel.5Justia. Tennessee Code 69-9-226 – Exceptions – Orientation
You have to be at least 12 years old to sit the exam. Non-residents born after January 1, 1989, need a NASBLA-approved certificate from their home state.6Tennessee Wildlife Resources Agency. Boating Education in Tennessee Vessels powered by 8.5 horsepower or less are exempt from the education requirement entirely.5Justia. Tennessee Code 69-9-226 – Exceptions – Orientation
Age Limits for Operators
Children under 12 generally cannot operate a powered vessel unless an adult who can take immediate control is on board. An exception exists for boats powered by 8.5 horsepower or less, and there’s a narrow allowance for children between 10 and 12 operating a boat at least 14 feet long with an engine under 15 horsepower.7U.S. Coast Guard Boating Safety. State Boating Laws A younger child can run a small trolling motor or a modest outboard on a fishing boat, but shouldn’t be at the helm of anything powerful without a supervising adult.
No-Wake Zones and Diver-Down Flags
Motorboats operating within 300 feet of a commercial dock or marina must travel at slow, no-wake speed. The 300 feet is measured from the last structure associated with the dock or marina.8Legal Information Institute. Tennessee Compilation of Rules and Regulations 1660-02-07-.11 – Special Areas Individual reservoirs and lakes often have their own posted no-wake zones with different thresholds, sometimes 100 or 150 feet from ramps or shorelines. Watch for buoys and signage at whichever body of water you’re on.
Divers must surface within 50 feet of their displayed diver-down flag.9Justia. Tennessee Code 69-9-401 – Display, Use and Illumination of Divers-Down Flags Vessel operators must not come within 50 feet of a displayed flag and must drop to idle speed within 200 feet of it.
Towing Skiers and Tubers
If you’re towing someone on skis or a tube behind a personal watercraft, Tennessee law requires one of two things: an observer on board who is at least 12 years old and can constantly watch the person being towed, or rearview mirrors mounted on both sides of the PWC. Each mirror must have at least 10 square inches of viewing area, and the combined viewing area of both mirrors must be at least 20 square inches. Towing without meeting one of these requirements is a Class A misdemeanor.10Justia. Tennessee Code 69-9-507 – Towing Safety
When You Have to Report an Accident
If a boating accident on Tennessee waters results in death, disappearance, serious injury, property damage over $2,000, or complete loss of a vessel, the operator must file a report with the Tennessee Wildlife Resources Agency. Accidents involving death, disappearance, or serious injury must be reported within 48 hours. Accidents involving only property damage or vessel loss must be reported within 10 days. If the operator can’t file, every passenger shares responsibility for making sure the report is made.11Justia. Tennessee Code 69-9-210 – Reporting of Boating Accidents
The $2,000 threshold covers total damage across all vessels, docks, and property involved, not just your own boat. A collision that dents two hulls and scrapes a dock can clear that bar quickly.
Alcohol On Board
Operating a registered or commercial vessel on Tennessee waters while under the influence of alcohol or drugs is a crime, with the legal threshold set at a blood alcohol concentration of 0.08%, the same as the state’s DUI standard. Refusing a chemical test when a wildlife officer requests one results in a 12-month suspension of your privilege to operate a vessel.12Justia. Tennessee Code 69-9-217 – Boating Under the Influence
Marine Sanitation if Your Boat Has a Toilet
If your boat has a marine toilet, federal law requires it to be connected to a Coast Guard-certified Marine Sanitation Device. Flow-through treatment units (Type I or Type II) treat sewage before discharge; a Type III is a holding tank that stores waste until you can pump it out at a shoreside facility.13US EPA. Marine Sanitation Devices (MSDs) Discharging untreated sewage into inland waters is illegal under the Clean Water Act.
Tennessee has one federally designated No Discharge Zone: Dale Hollow Lake, which straddles the Kentucky border. In that zone even treated sewage cannot be discharged overboard; everything must be held on board and pumped out ashore.14US EPA. No-Discharge Zones (NDZs) by State
Insurance
Tennessee does not require boat owners to carry liability insurance. Many marinas require proof of liability coverage before allowing you to dock, and lenders financing a boat purchase will almost always require a policy, so a boat you keep in a slip or still owe money on will usually need insurance even though the state itself doesn’t mandate it.