[Code of Federal Regulations] [Title 14, Volume 2] [Revised as of January 1, 2003] From the U.S. Government Printing Office via GPO Access [CITE: 14CFR65.35] [Page 120] TITLE 14--AERONAUTICSAND SPACE CHAPTER I--FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION (CONTINUED) PART 65--CERTIFICATION: AIRMEN OTHER THAN FLIGHT CREWMEMBERS--Table of Contents Subpart B--Air Traffic Control Tower Operators Sec. 65.35 Knowledge requirements. Each applicant for an air traffic control tower operator certificate must pass a written test on-- (a) The flight rules in part 91 of this chapter: (b) Airport traffic control procedures, and this subpart: (c) En route traffic control procedures; (d) Communications operating procedures; (e) Flight assistance service; (f) Air navigation, and aids to air navigation; and (g) Aviation weather.