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CFR > Title 40 - Protection of Environment > CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY > SUBCHAPTER C—AIR PROGRAMS (Parts 50–99) > PART 87—CONTROL OF AIR POLLUTION FROM AIRCRAFT AND AIRCRAFT ENGINES > SUBPART C—Exhaust Emissions (New Aircraft Gas Turbine Engines) (§87.20 to §87.21) > 87.20—Applicability.
87.20—Applicability.
The provisions of this subpart are applicable to all aircraft gas turbine engines of the classes specified beginning on the dates specified.