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Regulations last checked for updates: May 14, 2025
Title 40 - Protection of Environment last revised: Apr 14, 2028
All Titles
Title 40
Chapter I
Part 87 - PART 87—CONTROL OF AIR POLLUTION FROM AIRCRAFT AND AIRCRAFT ENGINES
§ 87.1 - Definitions.
§ 87.2 - Abbreviations.
§ 87.3 - General applicability and requirements.
§ 87.10 - Applicability—fuel venting.
§ 87.11 - Standard for fuel venting emissions.
§ 87.20 - Applicability—exhaust emissions.
§ 87.21 - Exhaust emission standards for Tier 4 and earlier engines.
§ 87.23 - Exhaust emission standards for Tier 6 and Tier 8 engines.
§ 87.31 - Exhaust emission standards for in-use engines.
§ 87.48 - Derivative engines for emissions certification purposes.
§ 87.50 - Exemptions and exceptions.
§ 87.60 - Testing engines.
authority:
42 U.S.C. 7401
source:
87 FR 72350, Nov. 23, 2022, unless otherwise noted.
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