Impaired Driving
You can't drive safely if you’re impaired. That’s why it’s illegal to drive under the influence of alcohol, marijuana, opioids, methamphetamines, or any potentially impairing drug–prescribed or over the counter. Driving while impaired by any substance—legal or illegal—puts you and others in harm’s way. Learn the latest research on drug-impaired driving, misconceptions about marijuana use and what you can do to drive more safely.
- Alcohol, marijuana and other drugs can impair the ability to drive because they slow coordination, judgment and reaction times.
- Cocaine and methamphetamine can make drivers more aggressive and reckless.
- Using two or more drugs at the same time, including alcohol, can amplify the impairing effects of each drug a person has consumed.
- Some prescription and over-the-counter medicines can cause extreme drowsiness, dizziness and other side effects. Read and follow all warning labels before driving, and note that warnings against operating heavy machinery include driving a vehicle.
Be Responsible. Have A Plan.
If you have been drinking or engaging in substance use, do not drive. Follow these tips for a safe way to end your day:
- Designate a sober, safe driver to drive you home
- Use services such as Uber, Lyft, taxis, etc.
- Be a good host. Offer non-alcoholic beverages and make sure everyone leaves with a safe ride.
- Always wear your seat belt.
When Drinking Alcohol
- Be responsible.
- Choose a designated drive before you go out, and make sure that person doesn't drink any alcoholic beverages.
- Call a taxi or other alternate transportation.
- Hide keys. Don't be afraid to take someone's car keys if they are unable to drive safely.
When Throwing a Party
- Offer non-alcoholic beverages and never pressure guests to drink alcohol.
- Serve plenty of food. A full stomach can slow the rate of alcohol absorption. Serve a great meal or have plenty of appetizers on hand.
- Stop serving alcohol well before the party ends. Give your guests an extra hour or two without alcohol before they head out the door.
- Arrange alternate transportation. Pay attention to your guests' alcohol intake and behavior. If someone has had a lot to drink or seems even the slightest bit tipsy, call a cab or set up a ride with a sober driver.
- Never serve alcohol to minors.
Updated: 11/07/2025 10:36AM