The following applicable regulations appear in 49 CFR and 14 CFR:
(a) 49 CFR Part 40--Procedures for Transportation Workplace Drug Testing Programs
(b) 14 CFR:
(1) Sec. 67.107--First-Class Airman Medical Certificate, Mental.
(2) Sec. 67.207--Second-Class Airman Medical Certificate, Mental.
(3) Sec. 67.307--Third-Class Airman Medical Certificate, Mental.
(4) Sec. 91.147--Passenger carrying flights for compensation or hire.
(5) Sec. 135.1--Applicability [Doc. No. FAA-2008-0937, 74 FR 22653, May 14, 2009; Amdt. 120-0A, 75 FR 3154, Jan. 20, 2010]