California Harbors and Navigation Code 655 provides one of the clearest statutory benchmarks available in a boating injury case, directly defining what reckless and negligent vessel operation looks like under California law. Understanding how this statute works, and how it can be used in a civil injury claim, is essential for anyone evaluating a case arising from a boating incident. The statute reaches both dangerous operation and boating under the influence, and a documented violation can shape both the liability theory and the story a jury hears about why an incident happened.
Section 655
Harbors and Navigation Code provision on reckless and negligent vessel operation
Negligence per se
Doctrine that can turn a statutory violation into a presumption of negligence
Harbors and Navigation Code section 655 makes it unlawful for any person to operate any vessel, or to manipulate any water skis, aquaplane, or similar device, in a reckless or negligent manner so as to endanger the life, limb, or property of any person. The statute separately addresses operating a vessel while under the influence of alcohol or drugs, establishing specific blood alcohol thresholds and creating criminal liability for boating under the influence, paralleling the framework California uses for impaired driving on the road.
While section 655 is primarily a criminal and regulatory statute, its violation can carry significant weight in a civil injury lawsuit through the doctrine of negligence per se. When a defendant's conduct violates a safety statute, and the plaintiff is a member of the class of persons the statute was designed to protect, and the harm that occurred is the kind of harm the statute was designed to prevent, the defendant's statutory violation can establish a presumption of negligence, shifting significant practical weight onto the defense to justify or excuse the violation. Even where a clear statutory violation exists, a well-built boating injury case typically pursues both the negligence per se theory and the broader common law duty of reasonable care, which can reach conduct that falls short of a specific statutory violation but is still unreasonably dangerous under the circumstances.
Courts and juries look at the totality of the circumstances, including the vessel's speed relative to conditions, abrupt course changes, and proximity to other vessels, swimmers, or fixed hazards. Excessive speed in a crowded harbor and sharp maneuvers near swimmers can support a finding of reckless operation.
The operator's attentiveness, familiarity with the specific waters, and whether a proper lookout was kept all matter, especially in low-visibility conditions where a failure to watch for hazards can itself amount to negligent operation.
Evidence of impairment, through field observations, chemical testing, or witness testimony about the operator's condition, can independently establish a statutory violation and a strong narrative for a jury. Cases involving suspected impairment should prioritize securing chemical test results, harbor patrol reports, and witness accounts.
Any boating injury case involving an operator's conduct should be evaluated early for potential Harbors and Navigation Code violations, since these statutory benchmarks can significantly strengthen a civil claim.
The case behind this page
The underlying story of a serious on-water injury and the parties held responsible.
Read the underlying boating incidentRelated duty
The equipment and seaworthiness duties that create liability apart from how the boat was operated.
See the vessel safety standardsRelated breakdowns from this case and our boating injury practice.
We take serious boating injury cases, including impaired operation claims, as counsel or co-counsel and pay statutory referral fees.
Refer a caseSection 655 makes it unlawful to operate a vessel, or to manipulate water skis, an aquaplane, or a similar device, in a reckless or negligent manner that endangers the life, limb, or property of any person, and it separately prohibits operating a vessel while under the influence of alcohol or drugs.
A violation can support a negligence per se argument, which allows a plaintiff to establish a presumption of negligence by showing the defendant violated a safety statute designed to protect people like the plaintiff from the type of harm that occurred, shifting practical weight onto the defense to justify the violation.
Yes. A civil injury claim does not require that the vessel operator was criminally cited or convicted under the Harbors and Navigation Code. Civil liability can be established independently through evidence of negligence, with any statutory violation serving as additional, though not required, support for the claim.
