REGULATIONS
Rulings
AD/CVD
Notices
HTSUS
U.S. Code
Regs
More
Ports
About
Updates
Apps
Larger font
Smaller font
SEARCH
Sort by Rank
Titles Ascending
Titles Descending
10 per page
25 Result/page
50 Result/page
Regulations last checked for updates: Feb 12, 2026
Title 40 - Protection of Environment last revised: Dec 22, 2026
All Titles
Title 40
Chapter I
Part 63
Subpart UUU - Subpart UUU—National Emission Standards for Hazardous Air Pollutants for Petroleum Refineries: Catalytic Cracking Units, Catalytic Reforming Units, and Sulfur Recovery Units
WHAT THIS SUBPART COVERS
§ 63.1560 - What is the purpose of this subpart?
§ 63.1561 - Am I subject to this subpart?
§ 63.1562 -
§ 63.1563 - When do I have to comply with this subpart?
CATALYTIC CRACKING UNITS, CATALYTIC REFORMING UNITS, SULFUR RECOVERY UNITS, AND BYPASS LINES
§ 63.1564 - What are my requirements for metal HAP emissions from catalytic cracking units?
§ 63.1565 - What are my requirements for organic HAP emissions from catalytic cracking units?
§ 63.1566 - What are my requirements for organic HAP emissions from catalytic reforming units?
§ 63.1567 - What are my requirements for inorganic HAP emissions from catalytic reforming units?
§ 63.1568 - What are my requirements for HAP emissions from sulfur recovery units?
§ 63.1569 - What are my requirements for HAP emissions from bypass lines?
GENERAL COMPLIANCE REQUIREMENTS
§ 63.1570 - What are my general requirements for complying with this subpart?
§ 63.1571 - How and when do I conduct a performance test or other initial compliance demonstration?
§ 63.1572 - What are my monitoring installation, operation, and maintenance requirements?
§ 63.1573 - What are my monitoring alternatives?
NOTIFICATIONS, REPORTS, AND RECORDS
§ 63.1574 - What notifications must I submit and when?
§ 63.1575 - What reports must I submit and when?
§ 63.1576 - What records must I keep, in what form, and for how long?
OTHER REQUIREMENTS AND INFORMATION
§ 63.1577 - What parts of the General Provisions apply to me?
§ 63.1578 - Who implements and enforces this subpart?
§ 63.1579 - What definitions apply to this subpart?
Appendix - Table 1 to Subpart UUU of Part 63—Metal HAP Emission Limits for Catalytic Cracking Units
Appendix - Table 2 to Subpart UUU of Part 63—Operating Limits for Metal HAP Emissions From Catalytic Cracking Units
Appendix - Table 3 to Subpart UUU of Part 63—Continuous Monitoring Systems for Metal HAP Emissions From Catalytic Cracking Units
Appendix - Table 4 to Subpart UUU of Part 63—Requirements for Performance Tests for Metal HAP Emissions From Catalytic Cracking Units
Appendix - Table 5 to Subpart UUU of Part 63—Initial Compliance With Metal HAP Emission Limits for Catalytic Cracking Units
Appendix - Table 6 to Subpart UUU of Part 63—Continuous Compliance With Metal HAP Emission Limits for Catalytic Cracking Units
Appendix - Table 7 to Subpart UUU of Part 63—Continuous Compliance With Operating Limits for Metal HAP Emissions From Catalytic Cracking Units
Appendix - Table 8 to Subpart UUU of Part 63—Organic HAP Emission Limits for Catalytic Cracking Units
Appendix - Table 9 to Subpart UUU of Part 63—Operating Limits for Organic HAP Emissions From Catalytic Cracking Units
Appendix - Table 10 to Subpart UUU of Part 63—Continuous Monitoring Systems for Organic HAP Emissions From Catalytic Cracking Units
Appendix -
Appendix - Table 12 to Subpart UUU of Part 63—Initial Compliance With Organic HAP Emission Limits for Catalytic Cracking Units
Appendix - Table 13 to Subpart UUU of Part 63—Continuous Compliance With Organic HAP Emission Limits for Catalytic Cracking Units
Appendix - Table 14 to Subpart UUU of Part 63—Continuous Compliance With Operating Limits for Organic HAP Emissions From Catalytic Cracking Units
Appendix - Table 15 to Subpart UUU of Part 63—Organic HAP Emission Limits for Catalytic Reforming Units
Appendix - Table 16 to Subpart UUU of Part 63—Operating Limits for Organic HAP Emissions From Catalytic Reforming Units
Appendix - Table 17 to Subpart UUU of Part 63—Continuous Monitoring Systems for Organic HAP Emissions From Catalytic Reforming Units
Appendix - Table 18 to Subpart UUU of Part 63—Requirements for Performance Tests for Organic HAP Emissions From Catalytic Reforming Units
Appendix - Table 19 to Subpart UUU of Part 63—Initial Compliance With Organic HAP Emission Limits for Catalytic Reforming Units
Appendix - Table 20 to Subpart UUU of Part 63—Continuous Compliance With Organic HAP Emission Limits for Catalytic Reforming Units
Appendix - Table 21 to Subpart UUU of Part 63—Continuous Compliance With Operating Limits for Organic HAP Emissions From Catalytic Reforming Units
Appendix - Table 22 to Subpart UUU of Part 63—Inorganic HAP Emission Limits for Catalytic Reforming Units
Appendix - Table 23 to Subpart UUU of Part 63—Operating Limits for Inorganic HAP Emission Limitations for Catalytic Reforming Units
Appendix - Table 24 to Subpart UUU of Part 63—Continuous Monitoring Systems for Inorganic HAP Emissions From Catalytic Reforming Units
Appendix - Table 25 to Subpart UUU of Part 63—Requirements for Performance Tests for Inorganic HAP Emissions From Catalytic Reforming Units
Appendix - Table 26 to Subpart UUU of Part 63—Initial Compliance With Inorganic HAP Emission Limits for Catalytic Reforming Units
Appendix - Table 27 to Subpart UUU of Part 63—Continuous Compliance With Inorganic HAP Emission Limits for Catalytic Reforming Units
Appendix - Table 28 to Subpart UUU of Part 63—Continuous Compliance With Operating Limits for Inorganic HAP Emissions From Catalytic Reforming Units
Appendix - Table 29 to Subpart UUU of Part 63—HAP Emission Limits for Sulfur Recovery Units
Appendix - Table 30 to Subpart UUU of Part 63—Operating Limits for HAP Emissions From Sulfur Recovery Units
Appendix - Table 31 to Subpart UUU of Part 63—Continuous Monitoring Systems for HAP Emissions From Sulfur Recovery Units
Appendix - Table 32 to Subpart UUU of Part 63—Requirements for Performance Tests for HAP Emissions From Sulfur Recovery Units Not Subject to the New Source Performance Standards for Sulfur Oxides
Appendix - Table 33 to Subpart UUU of Part 63—Initial Compliance With HAP Emission Limits for Sulfur Recovery Units
Appendix - Table 34 to Subpart UUU of Part 63—Continuous Compliance With HAP Emission Limits for Sulfur Recovery Units
Appendix - Table 35 to Subpart UUU of Part 63—Continuous Compliance With Operating Limits for HAP Emissions From Sulfur Recovery Units
Appendix - Table 36 to Subpart UUU of Part 63—Work Practice Standards for HAP Emissions From Bypass Lines
Appendix - Table 37 to Subpart UUU of Part 63—Requirements for Performance Tests for Bypass Lines
Appendix - Table 38 to Subpart UUU of Part 63—Initial Compliance With Work Practice Standards for HAP Emissions From Bypass Lines
Appendix - Table 39 to Subpart UUU of Part 63—Continuous Compliance With Work Practice Standards for HAP Emissions From Bypass Lines
Appendix - Table 40 to Subpart UUU of Part 63—Requirements for Installation, Operation, and Maintenance of Continuous Opacity Monitoring Systems and Continuous Emission Monitoring Systems
Appendix - Table 41 to Subpart UUU of Part 63—Requirements for Installation, Operation, and Maintenance of Continuous Parameter Monitoring Systems
Appendix - Table 42 to Subpart UUU of Part 63—Additional Information for Initial Notification of Compliance Status
Appendix - Table 43 to Subpart UUU of Part 63—Requirements for Reports
Appendix - Table 44 to Subpart UUU of Part 63—Applicability of NESHAP General Provisions to Subpart UUU
Appendix Appendix A - Appendix A to Subpart UUU of Part 63—Determination of Metal Concentration on Catalyst Particles (Instrumental Analyzer Procedure)
authority:
42 U.S.C. 7401
source:
57 FR 61992, Dec. 29, 1992, unless otherwise noted.
.list_box li,p,.cm-search-info,.cm-search-detail,.abt span,.expand-collapse_top
Get the CustomsMobile app!