U.S. Code of Federal Regulations

Regulations most recently checked for updates: Aug 27, 2025

All TitlesTitle 14Chapter IPart 33Subpart B - Subpart B—Design and Construction; General
§ 33.11 - Applicability.
§ 33.13 - [Reserved]
§ 33.15 - Materials.
§ 33.17 - Fire protection.
§ 33.19 - Durability.
§ 33.21 - Engine cooling.
§ 33.23 - Engine mounting attachments and structure.
§ 33.25 - Accessory attachments.
§ 33.27 - Turbine, compressor, fan, and turbosupercharger rotor overspeed.
§ 33.28 - Engine control systems.
§ 33.29 - Instrument connection.
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