After a boating accident, federal law requires you to stop, help anyone in danger, exchange information with the other operator, and file a written report with your state’s boating authority if anyone is hurt, missing, or killed, or if property damage reaches the reporting threshold. What to do after a boating accident also includes documenting the scene thoroughly, notifying your insurer, and tracking the deadline to sue if a claim becomes necessary. The choices you make in the first minutes and the first few days shape both your legal exposure and what you can recover.
Stop, Help, and Exchange Information
Every vessel operator has a federal duty to help anyone found in danger on the water, provided doing so won’t put your own passengers or boat at serious risk. Leaving the scene without rendering aid is a federal crime: a fine of up to $1,000, up to two years in prison, or both.1Office of the Law Revision Counsel. 46 USC 2304 – Duty to Provide Assistance at Sea
Check everyone for injuries first. Give first aid if you can, and call for emergency medical help for anything beyond what you can handle on the water. If your boat is still running and sitting somewhere dangerous, move it to a safer spot, but stay in the area.
Once people are accounted for, exchange information with the other operator: names, contact details, vessel registration numbers, insurance information, and the make and model of each boat. Note any visible damage. If the other operator refuses to share information or leaves, document what you can and tell authorities.
Document the Scene
Insurance claims are usually won or lost on documentation, and most people collect far too little. Photograph and video every vessel’s damage, the water and weather conditions, any visible injuries, and the relative positions of the boats. Capture hull identification numbers and registration markings on each vessel.
Talk to witnesses before they leave. Get names, phone numbers, and a quick account of what they saw. A rough voice memo at the scene beats a phone call two weeks later, because recollections fade fast.
Keep a running written log from that point forward: dates, times, who you spoke with, what was said. Save medical records, collect repair estimates from qualified marine mechanics, and hold on to every piece of correspondence with insurers and authorities. This file is your foundation if the claim stalls or ends up in court.
File the Required Accident Report
Federal regulations require the operator to file a written accident report with the state boating authority where the accident happened if any of these apply:2eCFR. 33 CFR 173.55 – Report of Casualty or Accident
- A person dies as a result of the accident.
- Someone needs medical treatment beyond basic first aid.
- A person disappears from the vessel in circumstances suggesting death or injury.
- Combined property damage reaches $2,000, the federal threshold. Some states set the threshold lower.3United States Coast Guard. Accident Reporting
- A vessel is a total loss, regardless of its value.
Deadlines
How quickly you file depends on severity:2eCFR. 33 CFR 173.55 – Report of Casualty or Accident
- Within 48 hours if someone dies within 24 hours of the accident, needs medical treatment beyond first aid, or disappears from a vessel.
- Within 10 days if the accident involves only property damage above the threshold, total loss of a vessel, or a death occurring more than 24 hours after the incident.
How to File
Submit the report to the state boating authority where the accident occurred, using the U.S. Coast Guard Boating Accident Report (Form CG-3865) or your state’s equivalent.4Regulations.gov. Coast Guard Boating Accident Report Form CG-3865 Supporting Statement The form asks for vessel identification, names and addresses of operators and owners, a description of what happened, weather and water conditions, whether personal flotation devices were available and used, and your assessment of the cause.5eCFR. 33 CFR 173.57 – Contents of Report If the operator can’t file, the vessel’s owner must.6Reginfo.gov. U.S. Coast Guard Boating Accident Report Form CG-3865
If You Don’t File
The Coast Guard can pursue a civil penalty of up to $35,000 against an operator or owner who fails to file when required.7Regulations.gov. Recreational Boating Accident Reporting Manual A missing report also creates problems later: insurers and courts expect to see it, and its absence raises questions you’ll have to answer.
Report Any Fuel or Oil Spill
If the collision causes your vessel to leak fuel, oil, or any other hazardous substance into the water, that triggers a separate reporting obligation on top of the accident report. Federal law requires you to notify the appropriate federal agency immediately once you become aware of the discharge.8Office of the Law Revision Counsel. 33 USC 1321 – Oil and Hazardous Substance Liability
Call the National Response Center at 1-800-424-8802.9National Response Team. Contact – NRT Be ready to give the location, what substance leaked, roughly how much, and the current weather and water conditions. Even a small fuel sheen on the surface counts.
Penalties for not reporting a spill are much harsher than most boaters realize: a criminal fine, up to five years in prison, or both.8Office of the Law Revision Counsel. 33 USC 1321 – Oil and Hazardous Substance Liability Don’t try to clean a fuel spill yourself with soap or detergent. Using chemicals to disperse oil is illegal and spreads the contamination.
Alcohol and Reckless Operation
Federal law sets the blood alcohol limit for vessel operators at 0.08%. Operating any vessel while under the influence is a Class A misdemeanor and carries a civil penalty of up to $5,000 or criminal prosecution.10GovInfo. 46 USC 2302 – Penalties for Negligent Operations and Interfering With Safe Operation States typically add their own penalties.
Even without alcohol, negligent operation of a recreational vessel that endangers life or property carries a federal civil penalty of up to $5,000. Grossly negligent operation is a Class A misdemeanor, which can mean up to a year in jail.10GovInfo. 46 USC 2302 – Penalties for Negligent Operations and Interfering With Safe Operation
Impairment cuts both ways in a civil claim. If the other operator was drinking or operating recklessly, that strengthens your case. If you were drinking, comparative fault rules in most states can reduce or eliminate what you recover. Adjusters and opposing lawyers will dig into this regardless of who files the claim.
Working With Your Insurance Company
Contact your insurer as soon as possible. Share the basic facts along with the documentation you collected: photos, repair estimates, medical records, and a copy of your filed accident report. The more complete your file, the faster the claim moves.
Adjusters sometimes call within days and ask for a recorded statement. You’re not required to give one immediately. It’s reasonable to wait until you’ve reviewed the facts and understand the extent of your injuries. Be honest, but don’t speculate about fault or minimize injuries before a doctor has fully evaluated you. What you say early can limit what you recover later.
If you’re filing against the other operator’s insurer, expect resistance. Their job is to minimize the payout, and they will scrutinize every detail. Keep records of every communication. Don’t accept a settlement before you understand your full damages, including medical costs that may continue well beyond the initial treatment.
Deadline to File a Lawsuit
If insurance can’t produce a fair result, you may need to sue. Federal maritime law generally gives you three years from the date of the accident to bring a personal injury or wrongful death claim.11Office of the Law Revision Counsel. 46 USC 30106 – Time Limit on Bringing Maritime Action for Personal Injury or Death
State deadlines may also apply depending on where the accident happened and whether it occurred in navigable waters. Some states set shorter windows for certain claims, so the federal three-year limit is a ceiling, not a guarantee. Missing any applicable deadline permanently bars the claim regardless of its merits.