Petition · past parliament · Department for Transport

Raise the Drug Driving limit for Cannabis now it can be prescribed.

Closed 490 signatures

What the petition asks

We should raise the Cannabis drug driving blood limit from 2µg/L to 5µg/L in accordance with expert advice.
In 2015 the drug driving zero tolerance limit was set 3µg/L lower than advised by an Expert Panel. In 2018 Cannabis was made a legally prescribable drug and the law should reflect this.
Research has shown that over 1 million people in the UK use cannabis due to a medical problem.

Currently Police can decide any reason to issue a roadside test, irrespective of driving history.

Even if a suspect is subsequently able to secure a prescription they still lose their license for one year, which can affect their employment and insurance.

Timeline

26 Mar 2021 Petition opened for signatures
26 Sep 2021 Closed to new signatures

Key facts

Signatures 490
Status Closed
Department Department for Transport
Opened 26 Mar 2021
Closed 26 Sep 2021

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Source: the official petition page. Last checked 15 Jul 2026.