[Code of Federal Regulations] [Title 14, Volume 3] [Revised as of January 1, 2006] From the U.S. Government Printing Office via GPO Access [CITE: 14CFR147.7] [Page 65] TITLE 14--AERONAUTICS AND SPACE CHAPTER I--FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION (CONTINUED) PART 147_AVIATION MAINTENANCE TECHNICIAN SCHOOLS--Table of Contents Subpart A_General Sec. 147.7 Duration of certificates. (a) An aviation maintenance technician school certificate or rating is effective until it is surrendered, suspended, or revoked. (b) The holder of a certificate that is surrendered, suspended, or revoked, shall return it to the Administrator. [Doc. No. 1157, 27 FR 6669, July 19, 1962, as amended by Amdt. 147-3, 41 FR 47230, Oct. 28, 1976]