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Title 40

Displaying title 40, up to date as of 7/20/2026. Title 40 was last amended 7/16/2026.
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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 QQQQQNational Emission Standards for Hazardous Air Pollutants for Friction Materials Manufacturing Facilities63.9480 – 63.9579
What This Subpart Covers63.9480 – 63.9495
§ 63.9480What is the purpose of this subpart?
§ 63.9485Am I subject to this subpart?
§ 63.9490What parts of my plant does this subpart cover?
§ 63.9495When do I have to comply with this subpart?
Emission Limitations63.9500
§ 63.9500What emission limitations must I meet?
General Compliance Requirements63.9505
§ 63.9505What are my general requirements for complying with this subpart?
Initial Compliance Demonstration Requirements63.9510 – 63.9525
§ 63.9510By what date must I conduct my initial compliance demonstration?
§ 63.9515How do I demonstrate initial compliance with the emission limitation that applies to me?
§ 63.9520What procedures must I use to demonstrate initial compliance?
§ 63.9525What are the installation, operation, and maintenance requirements for my weight measurement device?
Continuous Compliance Requirements63.9530
§ 63.9530How do I demonstrate continuous compliance with the emission limitation that applies to me?
Notifications, Reports, and Records63.9535 – 63.9550
§ 63.9535What notifications must I submit and when?
§ 63.9540What reports must I submit and when?
§ 63.9545What records must I keep?
§ 63.9550In what form and how long must I keep my records?
Other Requirements and Information63.9555 – 63.9579
§ 63.9555What parts of the General Provisions apply to me?
§ 63.9560Who implements and enforces this subpart?
§ 63.9565What definitions apply to this subpart?
§ 63.9570How do I apply for alternative compliance requirements?
§§ 63.9571-63.9579 [Reserved]
Table 1 to Subpart QQQQQ of Part 63
Applicability of General Provisions to Subpart QQQQQ