Vaud calls for a higher THC tolerance limit for drivers

Vaud's cantonal parliament asks the Confederation to raise the THC limit from 1.5 µg/L to 3.0 µg/L, in line with Germany.

On 20 February 2026, Vaud's cantonal parliament filed a cantonal initiative to raise the driving THC limit from 1.5 µg/L to 3.0 µg/L, in line with Germany since 2024.

The initiative will be handled by the Federal Assembly. Switzerland currently applies one of the strictest driving THC thresholds in Europe.