The law
Driving while over the legal limit for alcohol, or while impaired by drugs, is a criminal offence. The alcohol limit is lower in Scotland than in England and Wales. There are also specific limits for certain drugs, and it is an offence to drive impaired by any drug, including prescribed medicines. Check GOV.UK.
What a policy should cover
- A clear rule, often zero tolerance, that drivers must not drive or start work after drinking or taking drugs.
- The morning after: drinking late can leave alcohol in the system the next day.
- Prescription and over the counter medicines that cause drowsiness: drivers must tell the employer, and the employer must handle the information carefully.
- When testing may happen, such as after an incident or on reasonable suspicion, and how it works.
- Support: where drivers can get confidential help without fear of automatic dismissal, if you choose to offer that.
- Consequences for breaching it.
Do it properly
Brief all drivers, get a signed copy, apply the policy fairly and review it. Get advice from an HR or legal professional for the details.
General information, not legal advice or a substitute for official guidance. Check HSE, DVSA and GOV.UK for current requirements.
Related
Driving for work: duty of careEmployers have general duties to manage work-related road risk. What that means for vehicle checks, drivers and records.Driver fatigue and safetyTiredness is a major factor in road crashes. Warning signs, rules on hours, scheduling that helps and what drivers should do when tired.