U.S. Code of Federal Regulations

Regulations most recently checked for updates: Oct 30, 2025

All TitlesTitle 40Chapter IPart 63Subpart UUUU - Subpart UUUU—National Emission Standards for Hazardous Air Pollutants for Cellulose Products Manufacturing

WHAT THIS SUBPART COVERS
§ 63.5480 - What is the purpose of this subpart?
§ 63.5485 - Am I subject to this subpart?
§ 63.5490 - What parts of my plant does this subpart cover?
§ 63.5495 - When do I have to comply with this subpart?

EMISSION LIMITS, OPERATING LIMITS, AND WORK PRACTICE STANDARDS
§ 63.5505 - What emission limits, operating limits, and work practice standards must I meet?

GENERAL COMPLIANCE REQUIREMENTS
§ 63.5515 - What are my general requirements for complying with this subpart?

TESTING AND INITIAL COMPLIANCE REQUIREMENTS
§ 63.5530 - How do I demonstrate initial compliance with the emission limits and work practice standards?
§ 63.5535 - What performance tests and other procedures must I use?
§ 63.5540 - By what date must I conduct a performance test or other initial compliance demonstration?
§ 63.5541 - When must I conduct subsequent performance tests?
§ 63.5545 - What are my monitoring installation, operation, and maintenance requirements?

CONTINUOUS COMPLIANCE REQUIREMENTS
§ 63.5555 - How do I demonstrate continuous compliance with the emission limits, operating limits, and work practice standards?
§ 63.5560 - How do I monitor and collect data to demonstrate continuous compliance?

NOTIFICATIONS, REPORTS, AND RECORDS
§ 63.5575 - What notifications must I submit and when?
§ 63.5580 - What reports must I submit and when?
§ 63.5585 - What records must I keep?
§ 63.5590 - In what form and how long must I keep my records?

OTHER REQUIREMENTS AND INFORMATION
§ 63.5595 - What compliance options do I have if part of my affected source is subject to both this subpart and another subpart?
§ 63.5600 - What other requirements apply to me?
§ 63.5605 - Who implements and enforces this subpart?
§ 63.5610 - What definitions apply to this subpart?
Appendix - Table 1 to Subpart UUUU of Part 63—Emission Limits and Work Practice Standards
Appendix - Table 2 to Subpart UUUU of Part 63—Operating Limits
Appendix - Table 3 to Subpart UUUU of Part 63—Initial Compliance With Emission Limits and Work Practice Standards
Appendix - Table 4 to Subpart UUUU of Part 63—Requirements for Performance Tests
Appendix - Table 5 to Subpart UUUU of Part 63—Continuous Compliance With Emission Limits and Work Practice Standards
Appendix - Table 6 to Subpart UUUU of Part 63—Continuous Compliance With Operating Limits
Appendix - Table 7 to Subpart UUUU of Part 63—Notifications
Appendix - Table 8 to Subpart UUUU of Part 63—Reporting Requirements
Appendix - Table 9 to Subpart UUUU of Part 63—Recordkeeping Requirements
Appendix - Table 10 to Subpart UUUU of Part 63—Applicability of General Provisions to Subpart UUUU
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