U.S. Code of Federal Regulations

Regulations most recently checked for updates: Aug 27, 2025

All TitlesTitle 40Chapter IPart 60Subpart Da - Subpart Da—Standards of Performance for Electric Utility Steam Generating Units
§ 60.40Da - Applicability and designation of affected facility.
§ 60.41Da - Definitions.
§ 60.42Da - Standards for particulate matter (PM).
§ 60.43Da - Standards for sulfur dioxide (SO2).
§ 60.44Da - Standards for nitrogen oxides (NO2).
§ 60.45Da - Alternative standards for combined nitrogen oxides (NOX) and carbon monoxide (CO).
§ 60.46Da - [Reserved]
§ 60.47Da - Commercial demonstration permit.
§ 60.48Da - Compliance provisions.
§ 60.49Da - Emission monitoring.
§ 60.50Da - Compliance determination procedures and methods.
§ 60.51Da - Reporting requirements.
§ 60.52Da - Recordkeeping requirements.
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