View all text of Subpart A [§ 141.1 - § 141.29]
§ 141.18 - Carriage of narcotic drugs, marijuana, and depressant or stimulant drugs or substances.
If the holder of a certificate issued under this part permits any aircraft owned or leased by that holder to be engaged in any operation that the certificate holder knows to be in violation of § 91.19(a) of this chapter, that operation is a basis for suspending or revoking the certificate.