§ 45103. Prohibited service

• (a) An individual may not use alcohol or a controlled substance after October 28, 1991 , in violation of law or a United States Government regulation and serve as an airman, crewmember, airport security screening employee, air carrier employee responsible for safety-sensitive functions (as decided by the Administrator of the Federal Aviation Administration), or employee of the Administration with responsibility for safety-sensitive functions.
• (b) Notwithstanding subsection (a) of this section, an individual found to have used alcohol or a controlled substance after October 28, 1991 , in violation of law or a Government regulation may serve as an airman, crewmember, airport security screening employee, air carrier employee responsible for safety-sensitive functions (as decided by the Administrator), or employee of the Administration with responsibility for safety-sensitive functions only if the individual completes a rehabilitation program described in section 45105 of this title .
• (c) An individual who served as an airman, crewmember, airport security screening employee, air carrier employee responsible for safety-sensitive functions (as decided by the Administrator), or employee of the Administration with responsibility for safety-sensitive functions and who was found by the Administrator to have used alcohol or a controlled substance after October 28, 1991 , in violation of law or a Government regulation may not carry out the duties related to air transportation that the individual carried out before the finding of the Administrator if the individual—
  • (1) used the alcohol or controlled substance when on duty;
  • (2) began or completed a rehabilitation program described in section 45105 of this title before using the alcohol or controlled substance; or
  • (3) refuses to begin or complete a rehabilitation program described in section 45105 of this title after a finding by the Administrator under this section.