[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: 14CFR137.57] [Page 1195-1196] TITLE 14--AERONAUTICS AND SPACE CHAPTER I--FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION (CONTINUED) PART 137_AGRICULTURAL AIRCRAFT OPERATIONS--Table of Contents Subpart C_Operating Rules Sec. 137.57 Availability of certificate. Each holder of an agricultural aircraft operator certificate shall keep [[Page 1196]] that certificate at his home base of operations and shall present it for inspection on the request of the Administrator or any Federal, State, or local law enforcement officer.