SUBPART D—Part 119 Certificate Holders Authorized To Conduct Operations under Part 121 or Part 135 or Operators Under § 91.147 of This Chapter and Safety-Sensitive Employees (§120.31
- 120.31—Prohibited drugs.
- 120.33—Use of prohibited drugs.
- 120.35—Testing for prohibited drugs.
- 120.37—Misuse of alcohol.
- 120.39—Testing for alcohol.