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14 CFR 25.303

§ 25.303 Factor of safety.

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

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14 CFR 25.303, § 25.303 Factor of safety, United States, version 1 as recorded 2026-07-09, yourstate.us, https://yourstate.us/provision/54011
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Full text

Unless otherwise specified, a factor of safety of 1.5 must be applied to the prescribed limit load which are considered external loads on the structure. When a loading condition is prescribed in terms of ultimate loads, a factor of safety need not be applied unless otherwise specified.

Legislative history

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