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.