[Code of Federal Regulations] [Title 14, Volume 2] [Revised as of January 1, 2006] From the U.S. Government Printing Office via GPO Access [CITE: 14CFR121.151] [Page 433] TITLE 14--AERONAUTICS AND SPACE CHAPTER I--FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION (CONTINUED) PART 121_OPERATING REQUIREMENTS: DOMESTIC, FLAG, AND SUPPLEMENTAL OPERATIONS--Table of Contents Subpart H_Aircraft Requirements Sec. 121.151 Applicability. Source: Docket No. 6258, 29 FR 19197, Dec. 31, 1964, unless otherwise noted. This subpart prescribes aircraft requirements for all certificate holders.