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Norway


Influence of drugs

Forbidden drugs

Impairment limits comparable to a blood alcohol concentration (BAC) of 0.02%, are defined for 20 psychotropic drugs, including the most prevalent benzodiazepines, cannabis, GHB, hallucinogens and opioids.

Limits for graded sanctions, representing drug concentrations in blood likely to induce impairment comparable to BACs of 0.05% and 0.12%, are defined for 13 of the 20 substances.

Alprazolam (3 ng/ml)

Clonazepam (1.3 ng/ml)

Diazepam (57 ng/ml)

Fenazepam (1.8 ng/ml)

Flunitrazepam (1.6 ng/ml)

Nitrazepam (17 ng/ml)

Oxazepam (172 ng/ml)

Zolpidem (31 ng/ml)

Zopiclone (12 ng/ml)

THC (1.3 ng/ml)

Amphetamine (41 ng/ml)

Cocaine (24 ng/ml)

MDMA (48 ng/ml)

Methamphetamine (45 ng/ml)

GHB (10 300 ng/ml)

Ketamine (55 ng/ml)

LSD (1 ng/ml)

Buprenorphine (0.9 ng/ml)

Methadone (25 ng/ml)

Morphine (9 ng/ml)

The information on this website according to Article 8(1) of the road safety directive (Directive 2011/82/EU) is provided by the national authorities in the country concerned. In the event of any conflict between the provided data and the rules in effect in a given country, the latter take precedence. The data are meant purely as a documentation tool and the Commission does not assume any liability for their content or their accuracy.