[Code of Federal Regulations] [Title 14, Volume 2] [Revised as of January 1, 2008] From the U.S. Government Printing Office via GPO Access [CITE: 14CFR135.121] [Page 1081] TITLE 14--AERONAUTICS AND SPACE CHAPTER I--FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION (CONTINUED) PART 135_OPERATING REQUIREMENTS: COMMUTER AND ON DEMAND OPERATIONS AND RULES Subpart B_Flight Operations Sec. 135.121 Alcoholic beverages. (a) No person may drink any alcoholic beverage aboard an aircraft unless the certificate holder operating the aircraft has served that beverage. (b) No certificate holder may serve any alcoholic beverage to any person aboard its aircraft if that person appears to be intoxicated. (c) No certificate holder may allow any person to board any of its aircraft if that person appears to be intoxicated.