U.S. Code of Federal Regulations

Regulations most recently checked for updates: Aug 28, 2025

All TitlesTitle 30Chapter IPart 77Subpart C - Subpart C—Surface Installations
View all text of Subpart C [§ 77.200 - § 77.217]
§ 77.201 - Methane content in surface installations.

The methane content in the air of any structure, enclosure or other facility shall be less than 1.0 volume per centum.

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