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U.S. Code of Federal Regulations
Regulations most recently checked for updates: Aug 27, 2025
All Titles
Title 40
Chapter I
Part 51
Subpart I - Subpart I—Review of New Sources and Modifications
§ 51.160 - Legally enforceable procedures.
§ 51.161 - Public availability of information.
§ 51.162 - Identification of responsible agency.
§ 51.163 - Administrative procedures.
§ 51.164 - Stack height procedures.
§ 51.165 - Permit requirements.
§ 51.166 - Prevention of significant deterioration of air quality.
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