A boating accident involving serious bodily injury triggers a strict set of federal obligations for the operator and a three-year window for the injured person to sue. The operator must stop, help, exchange information, and file a written report within 48 hours. If gross negligence caused the injury, the case moves from civil fine to Class E felony, with one to five years in federal prison and up to $35,000 in civil penalties on top.
What Counts as Serious Bodily Injury
Federal law borrows its definition from the criminal code at 18 U.S.C. § 1365(h)(3). A serious bodily injury involves a substantial risk of death, extreme physical pain, protracted and obvious disfigurement, or protracted loss or impairment of a body part, organ, or mental faculty. A clean fracture that heals may not qualify. A traumatic brain injury or a severed limb almost certainly does. The distinction matters because it is the trigger that turns a misdemeanor into a felony.
What the Operator Must Do at the Scene
Two federal statutes apply the moment an accident happens. Under 46 U.S.C. § 2303, the operator of a vessel involved in a marine casualty must render necessary assistance to every person affected, so long as doing so does not create serious danger to the operator’s own vessel or passengers. The same statute requires you to give your name, address, and vessel identification to the operator of any other vessel involved, to any injured person, and to the owner of any damaged property.1GovInfo. 46 U.S. Code 2303 – Duties Related to Marine Casualty Assistance and Information
Under 46 U.S.C. § 2304, any operator must render assistance to anyone found at sea in danger of being lost, whether or not they were involved in the same accident. The only exception is when helping would put your own vessel or passengers in serious danger.2Office of the Law Revision Counsel. 46 U.S. Code 2304 – Duty to Provide Assistance at Sea
Violating either duty carries up to $1,000 in fines and up to two years in prison. Under § 2303, the vessel itself can also be held liable to the federal government for the fine, meaning the boat can be seized to satisfy the penalty.1GovInfo. 46 U.S. Code 2303 – Duties Related to Marine Casualty Assistance and Information
Reporting Deadlines and Where to File
A written report is required whenever a boating accident results in a death, an injury requiring medical treatment beyond first aid, the disappearance of a person under circumstances suggesting death or injury, or property damage totaling $2,000 or more.3eCFR. 33 CFR 173.55 – Report of Casualty or Accident
For an accident involving serious bodily injury, the deadline is 48 hours. Accidents involving a death within 24 hours, an injury beyond first aid, or a disappearance all fall under the same 48-hour rule. Property-damage-only accidents can be reported within 10 days.3eCFR. 33 CFR 173.55 – Report of Casualty or Accident
Reports go to the state boating law administrator, not directly to the Coast Guard. Under 33 CFR § 173.59, you file with the reporting authority in the state where your vessel is numbered, or with the authority in the state where the accident occurred if that is a different state.4eCFR. 33 CFR 173.59 – Reporting Authority Most states accept USCG Form CG-3865, though some use their own form.5United States Coast Guard Boating Safety. Accident Reporting
The report is detailed. Federal regulations require more than 25 categories of information, including vessel names and registration numbers, the date, time, and specific location on the water, weather and water conditions, names and addresses of all operators and injured persons, descriptions of injuries and damage with cost estimates, use of personal flotation devices, and the reporting operator’s opinion on the cause, including any role of alcohol or drugs.6eCFR. 33 CFR 173.57 – Contents of Report Gather what you can at the scene. Reconstructing it later is harder.
Criminal and Civil Penalties
Consequences turn on the operator’s conduct. Federal law separates ordinary negligence, gross negligence, and operating under the influence, and the presence of a serious bodily injury changes the ceiling on all three.
Negligent Operation
Operating a vessel in a negligent manner that endangers life, limb, or property carries a civil penalty of up to $5,000 for recreational vessels and up to $25,000 for commercial vessels. This is a civil fine rather than a criminal charge, but it can be imposed alongside other consequences.7Office of the Law Revision Counsel. 46 U.S. Code 2302 – Penalties for Negligent Operations
Gross Negligence Causing Serious Bodily Injury
Grossly negligent operation that endangers life, limb, or property is a Class A misdemeanor with up to one year in federal prison. When that gross negligence results in serious bodily injury, the charge escalates to a Class E felony, punishable by one to five years in prison, plus a civil penalty of up to $35,000.7Office of the Law Revision Counsel. 46 U.S. Code 2302 – Penalties for Negligent Operations This is the ceiling most operators in a serious-injury case will need to worry about.
One of the most common bases for finding gross negligence is failing to maintain a proper lookout. Federal navigation rules require every vessel to maintain a lookout at all times using sight, hearing, and any other means appropriate to the conditions, so as to fully assess the situation and the risk of collision.8eCFR. 33 CFR 83.05 – Look-out Investigators examine this rule closely after every serious accident. Distraction by a GPS, passengers, or the wake is where liability typically starts.
Boating Under the Influence
Operating a vessel under the influence of alcohol or drugs is a separate offense. The federal BAC limit for recreational boaters is 0.08, though a state’s lower limit applies on waters within its boundaries. A BUI violation carries a civil penalty of up to $5,000 or a Class A misdemeanor.7Office of the Law Revision Counsel. 46 U.S. Code 2302 – Penalties for Negligent Operations If the BUI also involves gross negligence that causes serious bodily injury, the felony penalties above apply on top.
If You Were the Person Injured
Federal maritime law gives an injured person three years from the date of the accident to file a civil lawsuit for personal injury or wrongful death.9Office of the Law Revision Counsel. 46 U.S. Code 30106 – Time Limit on Bringing Maritime Action for Personal Injury or Death Miss the deadline and the claim is gone, with narrow exceptions for minors and claims against government entities.
Comparative Fault
Maritime law follows a pure comparative negligence standard. Your recovery is reduced by your share of fault but never eliminated. If you were 30% responsible for the accident, you recover 70% of your damages. Even an injured person who was mostly at fault can recover something. This is more forgiving than many state land-based rules, which often bar recovery once you cross the 50% or 51% threshold.
What You Can Recover
A maritime personal injury claim can include past and future medical expenses, lost wages and reduced earning capacity, pain and suffering, disfigurement, and retraining costs if the injury prevents you from returning to your previous work. Categories and amounts turn on the severity of the injury and the facts of the accident. Maritime cases follow different procedural rules than typical car accident claims, so consulting an attorney experienced in admiralty law early is worth the effort.
How the Investigation Works
Jurisdiction depends on the water. The U.S. Coast Guard handles incidents on federal waters, investigates the cause, and enforces federal safety regulations.5United States Coast Guard Boating Safety. Accident Reporting On state waters, the investigation belongs to whichever agency administers that state’s boating laws, which may be a marine patrol, a fish and wildlife department, state police, or a parks department. Local law enforcement often handles the initial response before handing the file to the state agency with boating jurisdiction.
Serious-injury investigations are thorough. Investigators review the accident report, interview all operators and witnesses, examine the vessels for equipment failures, and test for alcohol or drug impairment. Findings feed into both potential criminal charges against the operator and any civil claim the injured person files later. Cooperate, but understand that anything said in the accident report or to investigators can be used in both proceedings.