14 CFR 27.831

§ 27.831 Ventilation.

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

Cite this

Citation: 14 CFR 27.831, § 27.831 Ventilation, United States, version 1 as recorded 2026-07-09, yourstate.us, https://yourstate.us/provision/54534
Permanent ID: ys:prov:54534@1
SHA-256: 3dfabed4a76459a631953218a3b5e2075fae071201cbc1343c77c52960680885

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Full text

(a) The ventilating system for the pilot and passenger compartments must be designed to prevent the presence of excessive quantities of fuel fumes and carbon monoxide. (b) The concentration of carbon monoxide may not exceed one part in 20,000 parts of air during forward flight or hovering in still air. If the concentration exceeds this value under other conditions, there must be suitable operating restrictions.

Legislative history

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