[Code of Federal Regulations] [Title 14, Volume 2] [Revised as of January 1, 2006] From the U.S. Government Printing Office via GPO Access [CITE: 14CFR121.15] [Page 425] TITLE 14--AERONAUTICS AND SPACE CHAPTER I--FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION (CONTINUED) PART 121_OPERATING REQUIREMENTS: DOMESTIC, FLAG, AND SUPPLEMENTAL OPERATIONS--Table of Contents Subpart A_General Sec. 121.15 Carriage of narcotic drugs, marihuana, and depressant or stimulant drugs or substances. If a certificate holder operating 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 Sec. 91.19(a) of this chapter, that operation is a basis for suspending or revoking the certificate. [Doc. No. 28154, 60 FR 65926, Dec. 20, 1995] Subpart B--Certification Rules for Domestic and Flag Air Carriers [Reserved] Subpart C--Certification Rules for Supplemental Air Carriers and Commercial Operators [Reserved] Subpart D--Rules Governing All Certificate Holders Under This Part [Reserved]