Führerschein Alkohol, Drogen und Fahruntüchtigkeit 2

Question 1

Which of the following substances makes it illegal to drive in Germany if detected above a legal threshold?

Accepted Answer

Cannabis (THC)

Answer

Driving under the influence of cannabis (THC) above the legal threshold is prohibited in Germany, with a limit of 3.5 ng/ml in blood serum following the 2024 reform.

Question 2

Following Germany's 2024 cannabis law reform, what is the THC blood serum limit for drivers?

Accepted Answer

3.5 ng/ml

Answer

Following the 2024 cannabis reform, Germany set the THC limit for driving at 3.5 ng/ml in blood serum — similar in principle to the BAC system for alcohol.

Question 3

How does fatigue (Müdigkeit) affect a driver's ability compared to alcohol intoxication?

Accepted Answer

Fatigue causes effects similar to alcohol, including impaired judgment and slower reactions

Answer

Fatigue impairs driving similarly to alcohol — it slows reactions, reduces concentration, and can cause involuntary microsleep episodes.

Question 4

What is 'Sekundenschlaf' (microsleep) and why is it dangerous while driving?

Accepted Answer

Brief involuntary sleep episodes lasting 1–30 seconds that cause complete loss of vehicle control

Answer

Sekundenschlaf (microsleep) refers to brief involuntary sleep episodes of 1–30 seconds during which the driver has absolutely no awareness or control of the vehicle.

Question 5

What effect should drivers be aware of when taking antihistamine medication before driving?

Accepted Answer

They can cause significant drowsiness and impair driving ability

Answer

Many antihistamines cause drowsiness as a side effect, which can significantly impair reaction time and driving ability — the medication label typically warns against operating machinery.

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Führerschein Alkohol, Drogen und Fahruntüchtigkeit 2