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MPU after drugs and cannabis: the current rules

Since the partial legalisation of cannabis in April 2024 a lot has changed — but driving under the influence still leads to the loss of the licence. For other drugs such as cocaine or amphetamine, the rules remain strict. This page explains when you need an MPU and how to prepare.

Cannabis: what applies since 2024

Owning small amounts of cannabis is legal for adults in Germany since 1 April 2024. On the road there is a legal limit: 3.5 nanograms of THC per millilitre of blood serum. For novice drivers in the probation period and drivers under 21 there is zero tolerance. Mixing cannabis with alcohol is punished more severely.

The decisive question for the authority is whether you can reliably separate cannabis use and driving (Trennungsvermögen). A single drive above the limit does not automatically lead to an MPU, but repeated offences or other doubts do.

Other drugs: cocaine, amphetamine, ecstasy & co.

For so-called hard drugs, the driving licence authority usually assumes that you are not fit to drive — even after a single proven use and even if you did not drive at that moment. The licence is withdrawn. To get it back you must pass an MPU.

As a rule the assessors expect proof that you have been completely drug-free for a longer time, documented by regular urine or hair tests at an accredited laboratory — usually 12 months, in some cases 6 months.

Not sure where you stand?

In the free first consultation we look at your case and give you an honest assessment.

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What the assessors want to see

  • An honest account of how often, why and in which situations you used drugs
  • Understanding of the risks of drugs in traffic
  • Concrete changes in your daily life: friends, leisure, stress and pressure
  • A stable plan for the future and, if required, complete lab documentation

Contradictions between your statements, the police report and the lab values are one of the most common reasons for a negative result. Knowing your file is therefore essential.

Our preparation for the drug MPU

We first clarify which rules apply to you — old law or new cannabis law, cannabis or other substances, proof required or not. Then we prepare you in one-to-one video sessions for the interview and practise it in a realistic MPU simulation.

This page gives general information on German driving licence law. It does not replace legal advice in your individual case.

Frequently asked questions

Cannabis is legal now — why do I need an MPU?

Owning and using cannabis is partly legal, driving under its influence is not. If you exceed the limit repeatedly or the authority doubts your ability to separate use and driving, it orders an MPU.

I was caught with drugs but was not driving. Can I lose my licence?

Yes. With hard drugs the authority can withdraw the licence even without a drive. With cannabis, mere possession within the legal limits usually has no consequences for the licence.

How long must I prove that I am drug-free?

For hard drugs usually 12 months, in some cases 6 months. For cannabis it depends on your pattern of use. We clarify this at the beginning so that your proof is accepted later.

Can old cannabis cases be reviewed under the new law?

Pending cases are assessed under the current law. If your case was decided before the reform, it can be worth checking your situation again — ideally with a lawyer.

Sascha P. Forbach
Sascha P. Forbach

Traffic therapist (Verkehrstherapeut) and founder of MPU Point. Since 2016 my team and I have prepared more than 5,000 people for the MPU — honestly, individually and without empty promises.

Last reviewed: November 2026 · Über mich

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