Marijuana impairment can affect driving for up to how many hours?

Marijuana impairment can affect driving for up to how many hours?

• A. 2 hours
• B. 5 hours
• C. 4 hours
• D. 3 hours

Answer: (B)

Marijuana impairs driving for up to five hours because THC can affect your reaction time, coordination, and judgment for several hours after use. The impairing effects don’t suddenly disappear when you feel “okay,” and in many cases they can last through the five-hour window the test references. The other options understate how long impairment can persist, especially for higher doses or recent use. So five hours best reflects the potential duration of impairment clinicians and the DOL recognize for safe driving.

Marijuana impairs driving for up to five hours because THC can affect your reaction time, coordination, and judgment for several hours after use. The impairing effects don’t suddenly disappear when you feel “okay,” and in many cases they can last through the five-hour window the test references. The other options understate how long impairment can persist, especially for higher doses or recent use. So five hours best reflects the potential duration of impairment clinicians and the DOL recognize for safe driving.