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Title 40

Displaying title 40, up to date as of 7/09/2026. Title 40 was last amended 7/09/2026.
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  1. Title 40 —Protection of Environment
  2. Chapter I —Environmental Protection Agency
  3. Subchapter C —Air Programs
  4. Part 63 —National Emission Standards for Hazardous Air Pollutants for Source Categories
  5. Subpart MMMMM   View Full Text
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eCFR Content

The Code of Federal Regulations (CFR) is the official legal print publication containing the codification of the general and permanent rules published in the Federal Register by the departments and agencies of the Federal Government. The Electronic Code of Federal Regulations (eCFR) is a continuously updated online version of the CFR. It is not an official legal edition of the CFR.

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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 MMMMMNational Emission Standards for Hazardous Air Pollutants: Flexible Polyurethane Foam Fabrication Operations63.8780 – 63.8830
What This Subpart Covers63.8780 – 63.8786
§ 63.8780What is the purpose of this subpart?
§ 63.8782Am I subject to this subpart?
§ 63.8784What parts of my plant does this subpart cover?
§ 63.8786When do I have to comply with this subpart?
Emission Limitations63.8790
§ 63.8790What emission limitations must I meet?
General Compliance Requirements63.8794
§ 63.8794What are my general requirements for complying with this subpart?
Testing and Initial Compliance Requirements63.8798 – 63.8806
§ 63.8798By what date must I conduct performance tests or other initial compliance demonstrations?
§ 63.8800What performance tests and other procedures must I use to demonstrate compliance with the emission limit for flame lamination?
§ 63.8802What methods must I use to demonstrate compliance with the emission limitation for loop slitter adhesive use?
§ 63.8806How do I demonstrate initial compliance with the emission limitations?
Continuous Compliance Requirements63.8810 – 63.8812
§ 63.8810How do I monitor and collect data to demonstrate continuous compliance?
§ 63.8812How do I demonstrate continuous compliance with the emission limitations?
Notification, Reports, and Records63.8816 – 63.8822
§ 63.8816What notifications must I submit and when?
§ 63.8818What reports must I submit and when?
§ 63.8820What records must I keep?
§ 63.8822In what form and how long must I keep my records?
Other Requirements and Information63.8826 – 63.8830
§ 63.8826What parts of the General Provisions apply to me?
§ 63.8828Who implements and enforces this subpart?
§ 63.8830What definitions apply to this subpart?
Table 1 to Subpart MMMMM of Part 63
Emission Limits
Table 2 to Subpart MMMMM of Part 63
Operating Limits for Existing, New, or Reconstructed Flame Lamination Affected Sources
Table 3 to Subpart MMMMM of Part 63
Performance Test Requirements for Existing, New, or Reconstructed Flame Lamination Affected Sources
Table 4 to Subpart MMMMM of Part 63
Initial Compliance With Emission Limits
Table 5 to Subpart MMMMM of Part 63
Continuous Compliance With Emission Limits and Operating Limits
Table 6 to Subpart MMMMM of Part 63
Requirements for Reports
Table 7 to Subpart MMMMM of Part 63
Applicability of General Provisions to Subpart MMMMM
Table 8 to Subpart MMMMM of Part 63
List of Hazardous Air Pollutants That Must Be Counted Toward Total HAP Content if Present at 0.1 Percent or More by Weight
eCFR Content