[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: 14CFR139.109] [Page 776] TITLE 14--AERONAUTICSAND SPACE CHAPTER I--FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION (CONTINUED) PART 139--CERTIFICATION AND OPERATIONS: LAND AIRPORTS SERVING CERTAIN AIR CARRIERS--Table of Contents Subpart B--Certification Sec. 139.109 Duration of certificate. An airport operating certificate or a limited airport operating certificate issued under this part is effective until it is surrendered by the certificate holder or is suspended or revoked by the Administrator.