Driving & the law
Medicinal cannabis and driving in Victoria
What a prescription means, what changed in 2025, and why THC detection still matters.
Published 9 November 2026 · Sources checked 9 November 2026
A prescription is not permission to drive
In Victoria, driving with THC present remains an offence, even with a prescription. Driving while impaired by any medicine is also unlawful.
What changed on 1 March 2025?
From 1 March 2025, magistrates have discretion over licence cancellation in certain prescribed medicinal cannabis cases. Considerations include a valid prescription, use as prescribed, no impairment and a first offence. This is not a defence or a guarantee of retaining a licence. Other penalties may apply.
There is no guaranteed waiting period
THC detection varies. No fixed waiting period guarantees a negative roadside test. Discuss transport needs with your treating clinician.
Check your own circumstances
CBD-only medicines can still affect driving. Check the formulation and obtain individual advice. This summary concerns Victoria.
Sources and evidence dates
- Transport Victoria — medicinal cannabis and driving
Current guidance checked 9 November 2026; change effective 1 March 2025.
General information, not individual medical or legal advice. No medicine or device is recommended. Source dates are shown separately from this article’s publication date.