U.S. Code of Federal Regulations

Regulations most recently checked for updates: Jan 24, 2025

All TitlesTitle 40Chapter IPart 63Subpart ZZZZ - Subpart ZZZZ—National Emissions Standards for Hazardous Air Pollutants for Stationary Reciprocating Internal Combustion Engines

WHAT THIS SUBPART COVERS
§ 63.6580 - What is the purpose of subpart ZZZZ?
§ 63.6585 - Am I subject to this subpart?
§ 63.6590 - What parts of my plant does this subpart cover?
§ 63.6595 - When do I have to comply with this subpart?

EMISSION AND OPERATING LIMITATIONS
§ 63.6600 - What emission limitations and operating limitations must I meet if I own or operate a stationary RICE with a site rating of more than 500 brake HP located at a major source of HAP emissions?
§ 63.6601 - What emission limitations must I meet if I own or operate a new or reconstructed 4SLB stationary RICE with a site rating of greater than or equal to 250 brake HP and less than or equal to 500 brake HP located at a major source of HAP emissions?
§ 63.6602 - What emission limitations and other requirements must I meet if I own or operate an existing stationary RICE with a site rating of equal to or less than 500 brake HP located at a major source of HAP emissions?
§ 63.6603 - What emission limitations, operating limitations, and other requirements must I meet if I own or operate an existing stationary RICE located at an area source of HAP emissions?
§ 63.6604 - What fuel requirements must I meet if I own or operate a stationary CI RICE?

GENERAL COMPLIANCE REQUIREMENTS
§ 63.6605 - What are my general requirements for complying with this subpart?

TESTING AND INITIAL COMPLIANCE REQUIREMENTS
§ 63.6610 - By what date must I conduct the initial performance tests or other initial compliance demonstrations if I own or operate a stationary RICE with a site rating of more than 500 brake HP located at a major source of HAP emissions?
§ 63.6611 - By what date must I conduct the initial performance tests or other initial compliance demonstrations if I own or operate a new or reconstructed 4SLB SI stationary RICE with a site rating of greater than or equal to 250 and less than or equal to 500 brake HP located at a major source of HAP emissions?
§ 63.6612 - By what date must I conduct the initial performance tests or other initial compliance demonstrations if I own or operate an existing stationary RICE with a site rating of less than or equal to 500 brake HP located at a major source of HAP emissions or an existing stationary RICE located at an area source of HAP emissions?
§ 63.6615 - When must I conduct subsequent performance tests?
§ 63.6620 - What performance tests and other procedures must I use?
§ 63.6625 - What are my monitoring, installation, collection, operation, and maintenance requirements?
§ 63.6630 - How do I demonstrate initial compliance with the emission limitations, operating limitations, and other requirements?

CONTINUOUS COMPLIANCE REQUIREMENTS
§ 63.6635 - How do I monitor and collect data to demonstrate continuous compliance?
§ 63.6640 - How do I demonstrate continuous compliance with the emission limitations, operating limitations, and other requirements?

NOTIFICATIONS, REPORTS, AND RECORDS
§ 63.6645 - What notifications must I submit and when?
§ 63.6650 - What reports must I submit and when?
§ 63.6655 - What records must I keep?
§ 63.6660 - In what form and how long must I keep my records?

OTHER REQUIREMENTS AND INFORMATION
§ 63.6665 - What parts of the General Provisions apply to me?
§ 63.6670 - Who implements and enforces this subpart?
§ 63.6675 - What definitions apply to this subpart?
Appendix - Table 1a to Subpart ZZZZ of Part 63—Emission Limitations for Existing, New, and Reconstructed Spark Ignition, 4SRB Stationary RICE >500 HP Located at a Major Source of HAP Emissions
Appendix - Table 1b to Subpart ZZZZ of Part 63—Operating Limitations for Existing, New, and Reconstructed SI 4SRB Stationary RICE >500 HP Located at a Major Source of HAP Emissions
Appendix - Table 2a to Subpart ZZZZ of Part 63—Emission Limitations for New and Reconstructed 2SLB and Compression Ignition Stationary RICE >500 HP and New and Reconstructed 4SLB Stationary RICE ≥250 HP Located at a Major Source of HAP Emissions
Appendix - Table 2b to Subpart ZZZZ of Part 63—Operating Limitations for New and Reconstructed 2SLB and CI Stationary RICE >500 HP Located at a Major Source of HAP Emissions, New and Reconstructed 4SLB Stationary RICE ≥250 HP Located at a Major Source of HAP Emissions, Existing CI Stationary RICE >500 HP
Appendix - Table 2c to Subpart ZZZZ of Part 63—Requirements for Existing Compression Ignition Stationary RICE Located at a Major Source of HAP Emissions and Existing Spark Ignition Stationary RICE ≤500 HP Located at a Major Source of HAP Emissions
Appendix - Table 2d to Subpart ZZZZ of Part 63—Requirements for Existing Stationary RICE Located at Area Sources of HAP Emissions
Appendix - Table 3 to Subpart ZZZZ of Part 63—Subsequent Performance Tests
Appendix - Table 4 to Subpart ZZZZ of Part 63—Requirements for Performance Tests
Appendix - Table 5 to Subpart ZZZZ of Part 63—Initial Compliance With Emission Limitations, Operating Limitations, and Other Requirements
Appendix - Table 6 to Subpart ZZZZ of Part 63—Continuous Compliance With Emission Limitations, and Other Requirements
Appendix - Table 7 to Subpart ZZZZ of Part 63—Requirements for Reports
Appendix -
Appendix Appendix A - Appendix A to Subpart ZZZZ of Part 63—Protocol for Using an Electrochemical Analyzer to Determine Oxygen and Carbon Monoxide Concentrations From Certain Engines
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