December 1 to 31, 2027

National Impaired Driving Prevention Month 2027

Every December, National Impaired Driving Prevention Month focuses on stopping driving under the influence of alcohol, drugs or fatigue during the holiday season.

What is National Impaired Driving Prevention Month?

National Impaired Driving Prevention Month is observed every December, when holiday celebrations raise the risk of people driving after drinking or using drugs. The National Highway Traffic Safety Administration (NHTSA) runs enforcement and awareness campaigns during the season.

Why it matters for workplaces

Impairment is not only about alcohol. Cannabis, some prescription and over-the-counter medicines, and extreme fatigue can all affect a driver's reaction time and judgment. For employers with people who drive for work, a clear fitness-for-duty policy protects workers and the public.

Ways to take part

  1. Review your fitness-for-duty policy. Make sure it covers alcohol, drugs, medication and fatigue.
  2. Plan holiday events safely. Offer non-alcoholic options and rides home after company events.
  3. Remind drivers about medication. Encourage them to check labels and speak up if a medicine affects them.
  4. Manage fatigue. Watch long hours and holiday travel through a fatigue risk management lens.
  5. Make it easy to speak up. Workers should be able to say they are not fit to drive without fear of punishment.

Frequently Asked Questions: National Impaired Driving Prevention Month

When is National Impaired Driving Prevention Month?

It runs for the whole month of December every year.

Do drug and alcohol testing rules apply to my drivers?

Drivers in safety-sensitive roles regulated by the Department of Transportation, such as commercial vehicle operators, are covered by DOT testing rules. Other employers can set their own policies within state law.

Get a reminder before it starts

We will email you two weeks ahead with the confirmed dates and a planning checklist.

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