U.S. Code of Federal Regulations

Regulations most recently checked for updates: Aug 27, 2025

All TitlesTitle 40Chapter IPart 51Subpart A - Subpart A—Air Emissions Reporting Requirements
View all text of Subpart A [§ 51.1 - § 51.50]
§ 51.1 - Who is responsible for actions described in this subpart?

States must inventory emission sources located on nontribal lands and report this information to EPA.

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