CBD and driving in Switzerland: THC limits

Hemp with a THC content below 1.0 % does not fall under the Narcotics Act in Switzerland. What is prohibited is not consumption, but driving while unfit to drive.

Because even legal CBD products can contain small amounts of THC, we recommend not driving a vehicle after taking them. This article explains which values apply and what you should look out for.

The legal position in Switzerland

In Switzerland, hemp with a THC content below 1.0 % does not fall under the Narcotics Act. Whether a particular product may be sold also depends on its product category.

• CBD (cannabidiol) is not psychoactive, so it does not make you “high”.
• THC (tetrahydrocannabinol) is psychoactive and can affect your reaction time.
• A product with too high a THC content can lead to problems – even if you feel completely sober.

What we say about the effects – and what we do not

We deliberately give no information about the effects of cannabidiol: health claims are not permitted for CBD products.

CBD does not have an intoxicating effect. What taking it does in an individual case is something we do not state – and no limit says anything about whether someone is fit to drive. If you do not feel fit to drive, do not drive.

If you are taking cannabidiol for the first time, do not do so on the road.

Police checks and drug tests

Where there is suspicion, the police do not test for cannabidiol but for THC, or rather for its breakdown products.

With full-spectrum products it can happen that minute amounts of THC are detectable in the blood although consumption was legal.

If the THC level in the blood exceeds 1.5 µg/L, you are deemed unfit to drive. The consequences can be the withdrawal of your driving licence and criminal charges.

Which types of product there are

Not every CBD product behaves in the same way – when it comes to driving, the difference is decisive.

• Full spectrum: contains all the cannabinoids of the plant, including THC below 1.0 %. Small traces of THC can show up in a test.
• Broad spectrum: contains many cannabinoids; THC is removed according to the manufacturer.
• Isolate: consists of cannabidiol only, according to the manufacturer.

When it is better not to drive

Even though CBD is legal, there are situations that call for particular care.

• with a high dose
• if you are taking new medication or suspect an interaction
• if you are very tired or exhausted

Basic rule: if you feel drowsy, dazed or unsure, wait before you drive.

What to look out for when buying

Reputable manufacturers disclose their laboratory analyses. These should show that:

• the THC content is below 1.0 %
• no synthetic additives or trans-cannabinoids are contained
• the products were manufactured free of contaminants

The difference between Switzerland and the EU

In Switzerland, the Narcotics Act applies from 1.0 % THC. In the European Union, a value of 0.3 % has applied to the cultivation of industrial hemp since 2023 – previously 0.2 %.

For finished CBD products, by contrast, there is no uniform EU limit: what is permitted is a matter for each member state, in some cases considerably stricter than Switzerland.

If you travel abroad with CBD products or drive there, check beforehand whether your product complies with the rules of the destination country.

Conclusion

Hemp below 1.0 % THC is not regarded as psychotropic and does not fall under the Narcotics Act. Anyone who drives must be fit to drive – what counts is the THC level in the blood, not the product in your pocket.

Because even legal products can contain traces of THC and these remain detectable for longer with regular use, we recommend not driving a vehicle after taking CBD.

Frequently asked questions

Is CBD detected in a drug test?

No. Drug tests check for THC, not for cannabidiol. With full-spectrum products, however, a small amount of THC can show up in the blood.

Can CBD impair my fitness to drive?

Cannabidiol does not have an intoxicating effect. We give no information about the effects in an individual case; if you do not feel fit to drive, do not drive.

What happens if I take a product with 0.8 % THC?

Hemp with that content does not fall under the Narcotics Act. Even so, minimal traces of THC can be detectable in the blood.

In which products has THC been removed according to the manufacturer?

Broad-spectrum and isolate products, whose THC is removed according to the manufacturer. That is not a guarantee that nothing will show up in the blood after use – the analysis of the particular batch is what counts.

May I travel abroad with CBD products?

Only if the product complies with the rules of the destination country. There is no uniform EU limit for finished CBD products; the rules differ from country to country.