U.S. Code of Federal Regulations

Regulations most recently checked for updates: Aug 28, 2025

All TitlesTitle 30Chapter IPart 57Subpart C - Subpart C—Fire Prevention and Control
View all text of Subpart C [§ 57.4000 - § 57.4761]
§ 57.4463 - Liquefied petroleum gas use underground.

Use of liquefied petroleum gases underground shall be limited to maintenance work.

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