What to do after a boating accident comes down to a short sequence: make sure everyone on board is safe, document the scene, file the reports federal and state law require, get medical attention, and notify your insurer before you talk to anyone else’s. The decisions you make in the first hours shape your legal and financial options for years, so the order matters.
Check for Injuries and Call for Help
Start with the people on board. Check every passenger, including anyone who seems unhurt — shock and concussion symptoms can take time to surface, and cold-water exposure can bring on hypothermia gradually. Keep eyes on anyone who hit their head or went into the water.
If the vessel is sinking, on fire, or otherwise in immediate danger, send a distress call. On a VHF marine radio, tune to Channel 16, say “MAYDAY” three times, and give your vessel’s name, position, and the nature of the emergency.1United States Coast Guard Navigation Center. Radio Information For Boaters Flares, whistles, and air horns can bring nearby boats in. If someone went overboard, mark the spot and keep visual contact while you maneuver back.
Federal law requires any vessel operator to assist anyone found in danger on the water, provided doing so won’t seriously endanger your own vessel or passengers.2Office of the Law Revision Counsel. 46 USC 2304 – Duty to Provide Assistance at Sea If a distress call comes over Channel 16 and no one else responds, you’re expected to answer.1United States Coast Guard Navigation Center. Radio Information For Boaters
Gather Information at the Scene
Once everyone is stable, start documenting. The details you capture now become the backbone of your accident report, insurance claim, and any lawsuit that follows. From every vessel involved, collect:
- Registration numbers, vessel names, make, model, and length
- Names and contact information for operators, owners, passengers, and witnesses
- Photos and video of damage to each vessel, visible injuries, debris, and the overall scene from multiple angles
- GPS coordinates if available and the exact time of the collision
- Weather, visibility, water conditions, current, and lighting
Write down anything you noticed before the collision: erratic steering, excessive speed, signs the other operator was distracted or impaired. These details slip away quickly once the adrenaline fades.
Don’t apologize or take blame at the scene. The impulse is natural, but a statement like “I should have seen you” can be quoted back at you in an insurance dispute or a courtroom. Exchange factual information, cooperate with responding officers, and save your account of what happened for the written report.
File the Required Accident Report
Federal regulations require a written report when any of the following occur:
- Someone dies
- Someone needs medical treatment beyond basic first aid
- Someone disappears from the vessel under circumstances suggesting death or injury
- Property damage totals $2,000 or more, or any vessel is a total loss
Those thresholds come from Coast Guard regulations.3eCFR. 33 CFR 173.55 – Report of Casualty or Accident Some states set a lower property-damage threshold, so check your state’s boating agency to confirm.
Deadlines
If anyone died, was seriously injured, or disappeared, the report is due within 48 hours. If the accident involved only property damage or vessel loss, you have 10 days.4eCFR. 33 CFR 173.55 – Report of Casualty or Accident Don’t push it to the last day; a report filed while details are fresh reads as more credible than one assembled at the deadline.
Where to File
In most cases you file with your state’s boating law administrator, not directly with the Coast Guard. The federal form is CG-3865, Recreational Boating Accident Report, though many states use their own equivalent.5U.S. Coast Guard Boating Safety. CG-3865 Recreational Boating Accident Report Each operator involved files separately. Your state fish and wildlife agency or department of natural resources will have the form and submission instructions.
Report Any Fuel or Oil Spill Separately
If fuel or oil leaked into the water, you have a separate reporting duty. Federal law requires anyone in charge of a vessel discharging oil into navigable waters to call the National Response Center at (800) 424-8802. There’s no minimum volume: if the discharge produces a visible sheen on the water, it’s reportable.6U.S. Environmental Protection Agency. When Are You Required to Report an Oil Spill and Hazardous Substance Release
This is easy to overlook when you’re dealing with injuries and damage, but ignoring a sheen can bring serious federal penalties. A single phone call satisfies the obligation.
Get Medical Attention — Even If You Feel Fine
See a doctor within 24 hours, whether or not you think you’re hurt. Boating collisions produce the kind of forces that cause concussions, whiplash, and internal injuries that don’t announce themselves right away. Cold water adds the risk of delayed-onset hypothermia.
Prompt medical records do two things. They tie your injuries to the accident rather than letting an insurer argue they happened later, and they close the gap that opposing parties use most often to undercut a claim. Follow through on every prescribed treatment and follow-up visit; dropping out mid-course creates the same credibility problem as waiting too long to see a doctor in the first place.
The Three-Year Clock on Injury Suits
Federal maritime law gives you three years from the date the cause of action arose to file a personal injury or wrongful death lawsuit.7Office of the Law Revision Counsel. 46 USC 30106 – Time Limit on Bringing Maritime Action for Personal Injury or Death Three years sounds like plenty, but building a maritime case takes expert witnesses, marine surveys, and medical records, and people miss the window by waiting too long to consult counsel. State deadlines may differ depending on where and how the accident happened, so don’t assume the federal timeline is the only one in play.
Notify Your Insurer
Contact your boating insurance company as soon as reasonably possible. Most policies require prompt notice, and late reporting can jeopardize coverage. Have your policy number ready, along with when and where the accident happened, which vessels were involved, and whether anyone was hurt.
The insurer will assign a claims adjuster to review your report, assess the damage, and sometimes interview witnesses. Cooperate with your own adjuster’s requests for documents, photos, and vessel access.
Cooperating with your insurer is not the same as cooperating with the other party’s. If the other operator’s insurance company calls, you are under no obligation to give a recorded statement without legal counsel, and doing so unprepared rarely helps you.
Before authorizing repairs, get the adjuster’s sign-off unless emergency work is needed to prevent further damage, like pumping out water or patching a hull breach. Unauthorized repairs invite disputes about whether the damage was accident-related in the first place. For extensive damage, a marine surveyor can provide an independent evaluation.
What to Avoid in the Days After
A few habits consistently cause problems:
- Don’t post about the accident on social media. Photos of the damage, speculation about who was at fault, even casual updates about how you’re feeling can be pulled into discovery in a lawsuit. Anything public is fair game.
- Don’t throw anything away. Accident reports, medical records, repair estimates, insurance correspondence, photos, and text messages about the accident should all go into one file. If you later hire a lawyer, a complete packet makes their job easier and your case stronger.
- Don’t give recorded statements to the other side without advice. You’ll have opportunities to tell your story through proper channels.
If the other operator seemed impaired, note that in your written report and mention it to responding officers. The legal blood alcohol limit for operating a recreational vessel is 0.08%, the same standard that applies to driving.8eCFR. 33 CFR Part 95 – Safety of Vessels Federal penalties for negligent operation, gross negligence, and operating under the influence sit in the same statute, with civil penalties reaching $5,000 for negligent operation and $35,000 for gross negligence causing serious injury.9Office of the Law Revision Counsel. 46 USC 2302 – Penalties for Negligent Operations and Interfering With Safe Operation Your observations feed both the criminal investigation and any civil claim.
When to Call a Maritime Attorney
Talk to a maritime attorney early if the accident involved serious injury, a death, disputed fault, or significant property damage. Maritime law differs from ordinary personal injury law in ways that catch people off guard, including jurisdiction questions, the duty to mitigate damages, and that three-year filing deadline.7Office of the Law Revision Counsel. 46 USC 30106 – Time Limit on Bringing Maritime Action for Personal Injury or Death Most maritime attorneys offer free initial consultations, so getting a professional read on your situation generally costs nothing.