U.S. Code of Federal Regulations

Regulations most recently checked for updates: Aug 27, 2025

All TitlesTitle 14Chapter IPart 33Subpart C - Subpart C—Design and Construction; Reciprocating Aircraft Engines
View all text of Subpart C [§ 33.31 - § 33.39]
§ 33.31 - Applicability.

This subpart prescribes additional design and construction requirements for reciprocating aircraft engines.

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