What is the maximum blood alcohol concentration (BAC) allowed for a pilot?

The maximum blood alcohol concentration (BAC) allowed for a pilot is 0.04 percent. This standard is imposed to ensure flight safety, reflecting the critical need for pilots to operate aircraft without impairment. Even at a BAC of 0.04 percent, a pilot may experience decreased coordination, judgment, and performance, which can significantly increase the risk of aviation incidents.

This regulation underscores the FAA's commitment to maintaining a high level of safety in aviation. It's important for pilots to be aware of both the legal limits and the potential effects that alcohol can have on their ability to perform effectively in their roles. Generally, stricter guidelines are set for aviation professionals compared to the legal limits for driving, reinforcing the unique responsibilities of pilots.