Code of Federal Regulations > Title 40 > Chapter I > Part 63 > Subpart HHHH - Subpart HHHH—National Emission Standards for Hazardous Air Pollutants for Wet-Formed Fiberglass Mat Production

U.S. Code of Federal Regulations

Regulations most recently checked for updates: Oct 30, 2025

WHAT THIS SUBPART COVERS

§ 63.2980 - What is the purpose of this subpart?

§ 63.2981 - Does this subpart apply to me?

§ 63.2982 - What parts of my plant does this subpart cover?

EMISSION LIMITATIONS

§ 63.2983 - What emission limits must I meet?

§ 63.2984 - What operating limits must I meet?

§ 63.2985 - When do I have to comply with these standards?

§ 63.2986 - How do I comply with the standards?

OPERATION, MAINTENANCE, AND MONITORING PLAN

§ 63.2987 - What must my operation, maintenance, and monitoring (OMM) plan include?

§ 63.2988 - [Reserved]

§ 63.2989 - How do I change my OMM plan?

§ 63.2990 - Can I conduct short-term experimental production runs that cause parameters to deviate from operating limits?

TESTING AND INITIAL COMPLIANCE REQUIREMENTS

§ 63.2991 - When must I conduct performance tests?

§ 63.2992 - How do I conduct a performance test?

§ 63.2993 - What test methods must I use in conducting performance tests?

§ 63.2994 - How do I verify the performance of monitoring equipment?

§ 63.2995 - What equations must I use to determine compliance?

MONITORING REQUIREMENTS

§ 63.2996 - What must I monitor?

§ 63.2997 - What are the requirements for monitoring devices?

NOTIFICATIONS, REPORTS, AND RECORDS

§ 63.2998 - What records must I maintain?

§ 63.2999 - In what form and for how long must I maintain records?

§ 63.3000 - What notifications and reports must I submit?

OTHER REQUIREMENTS AND INFORMATION

§ 63.3001 - What sections of the general provisions apply to me?

§ 63.3002 - Who implements and enforces this subpart?

§ 63.3003 - [Reserved]

§ 63.3004 - What definitions apply to this subpart?

§§ 63.3005-63.3079 - §[Reserved]

Appendix - Table 1 to Subpart HHHH of Part 63—Minimum Requirements for Monitoring and Recordkeeping

Appendix - Table 2 to Subpart HHHH of Part 63—Applicability of General Provisions (40 CFR Part 63, Subpart A) to Subpart HHHH

Appendix Appendix A - Appendix A to Subpart HHHH of Part 63—Method for Determining Free-Formaldehyde in Urea-Formaldehyde Resins by Sodium Sulfite (Iced & Cooled)

Appendix Appendix B - Appendix B to Subpart HHHH of Part 63—Method for the Determination of Loss-on-Ignition