14 CFR § 34.20 - Applicability.

---
identifier: "/us/cfr/t14/s34.20"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "14 CFR § 34.20 - Applicability."
title_number: 14
title_name: "Aeronautics and Space"
section_number: "34.20"
section_name: "Applicability."
chapter_name: "FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION"
subchapter_number: "C"
subchapter_name: "AIRCRAFT"
part_number: "34"
part_name: "FUEL VENTING AND EXHAUST EMISSION REQUIREMENTS FOR TURBINE ENGINE POWERED AIRPLANES"
positive_law: false
currency: "2026-04-05"
last_updated: "2026-04-05"
format_version: "1.1.0"
generator: "[email protected]"
authority: "42 U.S.C. 4321  7572; 49 U.S.C. 106(g), 40113, 44701-44702, 44704, 44714."
regulatory_source: "Docket No. 25613, 55 FR 32861, Aug. 10, 1990, unless otherwise noted."
cfr_part: "34"
---


# 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 § 34.21.