***Link*** :: [§ 91.17 Alcohol or drugs.](https://www.ecfr.gov/current/title-14/section-91.17) ***Description*** :: `= this.link` ***Author*** :: [[FAA]] #### Key Quotes * No person may act or attempt to act as a crewmember... * Within 8 hours after the consumption of any alcoholic beverage; * While under the influence of alcohol; * While using any drug that affects the person's faculties in any way contrary to safety; or * While having an alcohol concentration of 0.04 or greater * Except in an emergency, no pilot of a civil aircraft may allow a person who appears to be intoxicated... to be carried in that aircraft. #source #far