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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 60
Subpart Na - Subpart Na—Standards of Performance for Secondary Emissions from Basic Oxygen Process Steelmaking Facilities for Which Construction is Commenced After January 20, 1983
§ 60.140a - Applicability and designation of affected facilities.
§ 60.141a - Definitions.
§ 60.142a - Standards for particulate matter.
§ 60.143a - Monitoring of operations.
§ 60.144a - Test methods and procedures.
§ 60.145a - Compliance provisions.
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