[Code of Federal Regulations] [Title 14, Volume 1] [Revised as of January 1, 2003] From the U.S. Government Printing Office via GPO Access [CITE: 14CFR34.20] [Page 771] TITLE 14--AERONAUTICS AND SPACE CHAPTER I--FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION PART 34--FUEL VENTING AND EXHAUST EMISSION REQUIREMENTS FOR TURBINE ENGINE POWERED AIRPLANES--Table of Contents Subpart C--Exhaust Emissions (New Aircraft Gas Turbine Engines) Sec. 34.20 Applicability. The provisions of this subpart are applicable to all aircraft gas turbine engines of the classes specified beginning on the dates specified in Sec. 34.21.