A collision with another boat, a grounding, or a fall on board: boating accidents rarely happen dramatically, but they happen. Knowing what to do in the moment, rather than figuring it out afterward, protects you, everyone else involved, and potentially your insurance cover as well. This article explains what duties apply after an accident on the water, when and how to report it, and what matters when it comes to preserving evidence.

First Duty: Stop and Render Assistance

Right after an accident, one thing matters first: everyone’s safety. Stop your boat, get an overview of any injuries or damage, and provide first aid if someone is hurt. This duty doesn’t just come from the shipping regulations, it’s also rooted in general criminal law: Section 323c of the German Criminal Code (failure to render assistance) requires everyone to help in an emergency, as far as reasonably possible and without significant danger to themselves. That applies on the water just as much as on land.

We’ve covered exactly how to act in an emergency, first aid measures, the chain of survival, and how to send a distress call, in detail in our article on first aid on board. If there’s an acute threat to life, such as a person in the water or a sinking boat, rescue always comes before every other step, including preserving evidence.

A Duty to Establish the Facts, Not a Hit-and-Run Law

A common misconception: unlike on the road, Section 142 of the German Criminal Code, the classic hit-and-run provision, does not directly apply to accidents on the water according to court rulings. That doesn’t mean leaving the scene after a collision has no consequences, though. The shipping regulations set out their own duty to establish the facts: under Section 1.16(3) of the Inland Waterways Order (BinSchStrO), everyone involved in a shipping accident must establish the consequences of the accident and disclose their identity. At sea, the Maritime Shipping Regulations (Seeschifffahrtsstraßenordnung) mainly require keeping the fairway clear and notifying the relevant authority of any hazard to navigation, such as a damaged boat or drifting wreckage. Regardless of the exact wording in each set of shipping regulations, the same basic principle applies everywhere: stop, render assistance, and exchange contact details, rather than avoiding responsibility.

In practice, that means: stop, exchange names, addresses, and, if available, boat insurance details with everyone else involved. Also note the official registration number of the boats involved. Violating this duty is a regulatory offense, we’ve summarized the possible fines and other costly mistakes on the water in our article on fines and violations on the water. If someone is injured and a party still leaves the scene, criminal offenses such as failure to render assistance or negligent bodily harm can also apply.

When to Notify the Water Police

Not every bump at the dock needs a police report. As a rule of thumb, notify the water police (Wasserschutzpolizei) if:

  • anyone was injured, however minor,
  • significant property damage occurred,
  • there’s a risk to the environment, for example leaking fuel,
  • a boat is sinking, unable to maneuver, or people are in the water,
  • the parties disagree about fault, or someone refuses to share their details.

For minor damage where everyone agrees and contact details have been exchanged, sorting it out through the insurers afterward is often enough. When in doubt, though, reporting it is always the safer choice, especially if you’re unsure how serious the damage is or who’s responsible for handling it. On the water, you can reach the water police via the general emergency number 110, and in emergencies involving danger to life, additionally via the international maritime distress channel VHF Channel 16 or by phone via 112. For more on distress signals and how to send a proper distress call, see our article on distress signals at sea.

Preserving Evidence: What Matters Right After the Accident

Once the situation on board is safe and no one is in immediate danger, it’s worth carefully documenting what happened. That makes it easier to sort things out later, both with your insurer and, if needed, with the water police. It’s worth capturing:

  • Photos of the damage to both boats, the accident scene, and relevant surroundings such as channel markers or the shoreline.
  • Your position, ideally as GPS coordinates from a plotter or navigation app, supplemented with notable landmarks.
  • Contact details for everyone involved: name, address, phone number, the boat’s official registration number, and, if known, their boat insurer.
  • Witnesses, if any, along with their names and a way to reach them.
  • A prompt logbook entry with date, time, weather and visibility conditions, course and speed before the accident, and a factual description of what happened. The fresher the memory, the more accurate the entry.

When describing what happened, deliberately avoid assigning blame or speculating, stick to what you actually observed. A factual, timely record is worth far more afterward than an emotional assessment made right after the shock.

Common Causes of Accidents and How to Avoid Them

Many boating accidents share similar causes that a bit of extra attention can prevent. These include excessive speed in narrow channels or harbor areas, ignoring right-of-way and collision-avoidance rules, distraction, and operating a boat under the influence of alcohol. We’ve summarized the key right-of-way and collision-avoidance rules in our article on right-of-way and collision-avoidance rules, and the blood alcohol thresholds that apply to recreational skippers are explained in our article on the blood alcohol limit on a boat. Technical causes matter too: a poorly maintained outboard that fails at a critical moment can quickly turn a tight situation dangerous. Regular maintenance, following the guidance in our article on basic outboard motor maintenance, noticeably lowers that risk. Knowing the most common causes naturally makes you a more attentive, forward-looking skipper.

Getting the Boat Back Safely After the Accident

Once the immediate danger has passed and the necessary steps are underway, the question becomes whether the boat can safely continue at all. Before heading back to the harbor, check whether the hull is taking on water, whether the rudder and drive still work properly, and whether the accident has affected the boat’s stability. When in doubt, it’s better to call for help from another boat or the search and rescue service than to risk continuing with a damaged boat. Even after a collision or grounding that seems to have ended without serious harm, it’s worth having a qualified workshop inspect the boat thoroughly before the next trip, some damage to the underwater hull or the shaft only shows up after a while.

Notifying Your Own Boat Insurer

Once the accident has happened, the work doesn’t end with exchanging contact details. Under Section 30 of the German Insurance Contract Act (VVG), you’re required to notify your insurer of the insured event without undue delay. Don’t wait until you’re back at your home marina or until the end of the season, inform the insurer as soon as reasonably possible, even informally by phone or email at first with the key facts. You can follow up later with the detailed written claim and your documentation.

What a sensible boat insurance policy should actually cover, and what to look for in the contract, is explained in our article on boat insurance for recreational boats. It’s worth knowing that if you delay the notification significantly or violate other contractual obligations, your insurer can reduce its payout, or in serious cases, refuse it altogether.

Special Considerations for Charter Boats

If you’re on a chartered boat, another duty comes into play: notifying the charter company without delay. Most charter contracts require any damage, even something seemingly minor, to be reported immediately, often while the trip is still underway rather than only at handover. The reason is simple: only then can the charter company decide whether the boat can still be used safely, and only then can the claims process, whether through the deposit or a separate charter insurance policy, run smoothly. Concealing damage and letting it be discovered at handover risks trouble beyond just the deposit. Whether owning your own boat or chartering fits your plans better is something we weighed in our article on owning your own boat versus chartering.

What Happens If You Violate These Duties?

Ignoring the duty to establish the facts, or failing to report an accident at all, isn’t a small matter. Beyond the fine already mentioned under regulatory offense law, injuries can bring additional criminal consequences, and problems with your own insurer if it later turns out that important duties were violated. A detailed overview of fines, criminal offenses, and license revocation for serious or repeated violations is in our article on fines and violations on the water.

How This Comes Up in the Exam

Conduct after an accident is one of the basic legal duties regularly tested in the theory portion of both the SBF Binnen and SBF See exams, for example in connection with the duty to establish the facts, the duty to render assistance, and sending a proper distress call. The official ELWIS question catalog tests less about specific legal paragraphs and more about practical understanding of what to do in an emergency. With the Boatpass app, you can practice exactly these questions in exam mode and get immediate feedback on where gaps remain, before it counts in the real SBF exam.

Conclusion

After a boating accident, everyone’s safety comes first, then establishing the facts and exchanging identities, and depending on severity, notifying the water police. Careful, timely documentation with photos, position, and contact details makes sorting things out afterward much easier, as does notifying your own insurer without delay, and, on a chartered boat, the charter company as well. Knowing this order in advance, rather than improvising it in the shock of the moment, makes an already unpleasant situation far less stressful to handle.