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Since June 5, 2026, operators of motorized pleasure craft have had to incorporate a new regulatory provision into their navigation preparations. Decree no. 2026-434 of June 2, 2026 creates a number of specific contraventions relating to manifest drunkenness and lack of control of a motorized pleasure craft. Over and above the penalties provided for, it is above all the definition of a state of manifest drunkenness that deserves the attention of boaters.
An offence not based on an alcohol test
The main feature of the new text is the notion of "manifest drunkenness".
Unlike offences based on alcohol levels measured in breath or blood, obvious drunkenness is based solely on visual observations made by authorized officers.
No breathalyzer, breathalyser or blood sample is required to establish this.
The ticketing officer directly observes external signs of a significant change in the driver's behavior.
In practice, several elements are traditionally used to characterize a state of manifest drunkenness:
- strongly alcoholic breath;
- incoherent or confused statements;
- speech difficulties ;
- unusual stuttering ;
- aggressiveness or excessive euphoric behavior;
- abnormal sleepiness ;
- balance disorders ;
- hesitant or staggering gait ;
- difficulty performing simple gestures.
These observations are recorded in an official report or in a descriptive sheet of the behavior observed. For boaters, this provision represents a major departure from the usual roadside checks associated with a legal blood alcohol level.
A new fine for drink-drivers
The decree introduces a new article R. 5242-1 into the Transport Code. In the maritime zones concerned, operating a motorized pleasure craft in a state of obvious intoxication becomes a fourth-class contravention.
This qualification enables the authorities to penalize behavior that poses a risk to navigation safety, even when no scientific measurement of blood alcohol content is available or has been carried out. The government justifies this measure by the need to reinforce maritime safety in the face of dangerous behavior observed in certain busy navigation areas.
Licence suspension and boat confiscation
The decree is not limited to fines. Judicial officers now have several additional tools at their disposal. In particular, the judge can order the suspension of a boating license for up to a year.
The text also provides for the possibility of confiscating the vessel used to commit the offence, where this measure is deemed appropriate. This provision is probably the most dissuasive aspect of the decree for boat owners. However, confiscation remains a supplementary penalty at the discretion of the judicial authorities.
Excessive speed is also becoming a priority target
The decree also covers behavior related to failure to maintain control of a vessel. A new article R. 5242-2 penalizes failure to maintain control of one's speed or vessel in certain situations.
Three cases in particular are targeted:
- when passing or overtaking other vessels;
- when weather conditions reduce visibility, particularly in the presence of rain or fog;
- close to bathers, divers or physical obstacles.
The text thus imposes a permanent adaptation of speed to actual navigation conditions.
This obligation already exists in international maritime regulations, but it now has a more explicit repressive basis for motorized pleasure craft.
A legal concept that is already raising questions
While the objective of safety is clearly stated, the notion of manifest drunkenness raises a number of practical questions. Its characterization is largely dependent on the judgement of the ticketing officer.
Some external signs may have different causes from alcohol consumption: fatigue, seasickness, medication or stress.
The official report must therefore give a precise description of the elements observed, to enable the judge to assess the reality of the situation. For yachtsmen, this regulatory change is a reminder that, at sea as on the road, drinking alcohol before or while operating a vessel now carries heavier consequences.
With this decree, which came into force on June 5, 2026, the authorities now have a specific legal framework for punishing behavior deemed dangerous on board motorboats, even in the absence of a blood alcohol measurement. It is precisely this point which constitutes the main novelty of the text and which should attract the attention of sailors during the 2026 summer season.
