The National Highway Traffic Safety Administration said even a small amount of alcohol can affect driving ability.
According to NHTSA, more than 12,000 people were killed in drunk driving crashes in 2023. The agency also reported that more than 2,000 people were killed in alcohol-related crashes involving drivers with a blood alcohol concentration of .01 to .07.
NHTSA outlined predictable effects on driving at several BAC levels:
At .02 BAC, drivers may experience a decline in visual functions and a reduced ability to perform two tasks at the same time.
At .05 BAC, drivers may have reduced coordination, reduced ability to track moving objects, difficulty steering, and a reduced response to emergency driving situations.
At .08 BAC, drivers may experience problems with concentration, short-term memory loss, speed control, reduced information processing capability, and impaired perception.
At .10 BAC, drivers may have a reduced ability to maintain lane position and brake appropriately.
At .15 BAC, drivers may experience substantial impairment in vehicle control, attention to driving tasks, and in necessary visual and auditory information processing.
Photo credits to NHTSA