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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 Q - Subpart Q—Standards of Performance for Primary Zinc Smelters
§ 60.170 - Applicability and designation of affected facility.
§ 60.171 - Definitions.
§ 60.172 - Standard for particulate matter.
§ 60.173 - Standard for sulfur dioxide.
§ 60.174 - Standard for visible emissions.
§ 60.175 - Monitoring of operations.
§ 60.176 - Test methods and procedures.
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