14 CFR 25.969

§ 25.969 Fuel tank expansion space.

United States · 14 CFR — Aeronautics and Space · Status: effective

Cite this

Citation: 14 CFR 25.969, § 25.969 Fuel tank expansion space, United States, version 1 as recorded 2026-07-09, yourstate.us, https://yourstate.us/provision/54192
Permanent ID: ys:prov:54192@1
SHA-256: 11df9d3fcd332656b3c8939c674f768690ba45c57ef45455fe504be40bb1aa17

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Full text

Each fuel tank must have an expansion space of not less than 2 percent of the tank capacity. It must be impossible to fill the expansion space inadvertently with the airplane in the normal ground attitude. For pressure fueling systems, compliance with this section may be shown with the means provided to comply with § 25.979(b).

Legislative history

This is a federal regulation, adopted through agency rulemaking under the Administrative Procedure Act — not enacted by a recorded vote of Congress.