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Title 40

Displaying title 40, up to date as of 8/06/2026. Title 40 was last amended 8/06/2026.
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Title 40Protection of EnvironmentPart / Section
Chapter IEnvironmental Protection Agency1 – 1099
Subchapter CAir Programs50 – 99
Part 63National Emission Standards for Hazardous Air Pollutants for Source Categories63.1 – 63.12099
Subpart HHHHNational Emission Standards for Hazardous Air Pollutants for Wet-Formed Fiberglass Mat Production63.2980 – 63.3079
What This Subpart Covers63.2980 – 63.2982
§ 63.2980What is the purpose of this subpart?
§ 63.2981Does this subpart apply to me?
§ 63.2982What parts of my plant does this subpart cover?
Emission Limitations63.2983 – 63.2986
§ 63.2983What emission limits must I meet?
§ 63.2984What operating limits must I meet?
§ 63.2985When do I have to comply with these standards?
§ 63.2986How do I comply with the standards?
Operation, Maintenance, and Monitoring Plan63.2987 – 63.2990
§ 63.2987What must my operation, maintenance, and monitoring (OMM) plan include?
§ 63.2988 [Reserved]
§ 63.2989How do I change my OMM plan?
§ 63.2990Can I conduct short-term experimental production runs that cause parameters to deviate from operating limits?
Testing and Initial Compliance Requirements63.2991 – 63.2995
§ 63.2991When must I conduct performance tests?
§ 63.2992How do I conduct a performance test?
§ 63.2993What test methods must I use in conducting performance tests?
§ 63.2994How do I verify the performance of monitoring equipment?
§ 63.2995What equations must I use to determine compliance?
Monitoring Requirements63.2996 – 63.2997
§ 63.2996What must I monitor?
§ 63.2997What are the requirements for monitoring devices?
Notifications, Reports, and Records63.2998 – 63.3000
§ 63.2998What records must I maintain?
§ 63.2999In what form and for how long must I maintain records?
§ 63.3000What notifications and reports must I submit?
Other Requirements and Information63.3001 – 63.3079
§ 63.3001What sections of the general provisions apply to me?
§ 63.3002Who implements and enforces this subpart?
§ 63.3003 [Reserved]
§ 63.3004What definitions apply to this subpart?
§§ 63.3005-63.3079 [Reserved]
Table 1 to Subpart HHHH of Part 63
Minimum Requirements for Monitoring and Recordkeeping
Table 2 to Subpart HHHH of Part 63
Applicability of General Provisions (40 CFR Part 63, Subpart A) to Subpart HHHH
Appendix A to Subpart HHHH of Part 63
Method for Determining Free-Formaldehyde in Urea-Formaldehyde Resins by Sodium Sulfite (Iced & Cooled)
Appendix B to Subpart HHHH of Part 63
Method for the Determination of Loss-on-Ignition