14 CFR § 120.31 - Prohibited drugs.

---
identifier: "/us/cfr/t14/s120.31"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "14 CFR § 120.31 - Prohibited drugs."
title_number: 14
title_name: "Aeronautics and Space"
section_number: "120.31"
section_name: "Prohibited drugs."
chapter_name: "FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION"
subchapter_number: "G"
subchapter_name: "AIR CARRIERS AND OPERATORS FOR COMPENSATION OR HIRE: CERTIFICATION AND OPERATIONS"
part_number: "120"
part_name: "DRUG AND ALCOHOL TESTING PROGRAM"
positive_law: false
currency: "2026-04-05"
last_updated: "2026-04-05"
format_version: "1.1.0"
generator: "[email protected]"
authority: "49 U.S.C. 106(f), 40101-40103, 40113, 40120, 41706, 41721, 44106, 44701, 44702, 44703, 44709, 44710, 44711, 45101-45105, 46105, 46306."
regulatory_source: "Docket FAA-2008-0937, 74 FR 22653, May 14, 2009, unless otherwise noted."
cfr_part: "120"
---


# 120.31 Prohibited drugs.

(a) Each certificate holder or operator shall provide each employee performing a function listed in subpart E of this part, and his or her supervisor, with the training specified in that subpart.

(b) No certificate holder or operator may use any contractor to perform a function listed in subpart E of this part unless that contractor provides each of its employees performing that function for the certificate holder or operator, and his or her supervisor, with the training specified in that subpart.