Cannabis and driving licence withdrawal in Switzerland

A road traffic incident can lead to both criminal and administrative proceedings. Fitness during the journey, longer-term fitness to drive and previous measures are separate questions.

TL;DR: Driving while unfit is a serious infringement under Article 16c of the Road Traffic Act. The statutory minimum withdrawal is generally three months; previous infringements and other circumstances can lead to longer or different measures.

Ability to drive and longer-term fitness

Ability to drive concerns the person’s condition during a particular journey. Longer-term fitness concerns the continuing requirements for driving safely. A fitness assessment and withdrawal for a specific infringement therefore have different purposes. A positive test does not automatically settle every question in both procedures.

No universal repeat-offence table

The withdrawal period depends, among other things, on the nature and timing of previous infringements. “Three months the first time, twelve the second” is too crude. A withdrawal on safety grounds for lack of fitness also differs from a fixed-period withdrawal imposed for an infringement. The applicable legal basis and the road traffic authority’s decision are what matter.

Prescribed medicines

If a person can demonstrate that THC comes from medication prescribed by a doctor, its presence alone does not establish unfitness to drive (Article 2(2ter) of the Swiss Traffic Rules Ordinance). Actual driving ability remains decisive. A prescription is therefore not blanket permission to drive.

Discuss possible effects on attention and reactions with your treating clinician. Do not drive while impaired, and take particular care when starting or changing treatment. Safety-sensitive tasks at work also need an individual assessment.

Assessment and getting the licence back

Whether a traffic medicine assessment, monitoring or other evidence is required depends on the individual decision. It does not imply a universal six-month period, mandatory hair testing or nationally fixed assessment fees. Keep the decision and clarify the required steps with the responsible authority. Where conditions remain outstanding, the end of a time period does not automatically mean that driving may resume.

FAQ

Does a first cannabis case always mean exactly three months?

No. Three months is generally the minimum for a serious infringement; the actual measure depends on the case. Doubts about longer-term fitness can also require investigation.

Does a prescription guarantee permission to drive?

A prescription alone cannot answer that question. Where medically prescribed use is demonstrated, detecting THC does not by itself establish unfitness to drive. Driving while impaired remains prohibited. Discuss your individual circumstances with your treating clinician.

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