Site Feedback

Title 40

Displaying title 40, up to date as of 7/15/2026. Title 40 was last amended 7/14/2026.
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.

Learn more about the eCFR, its status, and the editorial process.

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 JJJJNational Emission Standards for Hazardous Air Pollutants: Paper and Other Web Coating63.3280 – 63.3420
What This Subpart Covers63.3280 – 63.3310
§ 63.3280What is in this subpart?
§ 63.3290Does this subpart apply to me?
§ 63.3300Which of my emission sources are affected by this subpart?
§ 63.3310What definitions are used in this subpart?
Emission Standards and Compliance Dates63.3320 – 63.3330
§ 63.3320What emission standards must I meet?
§ 63.3321What operating limits must I meet?
§ 63.3330When must I comply?
General Requirements for Compliance With the Emission Standards and for Monitoring and Performance Tests63.3340 – 63.3360
§ 63.3340What general requirements must I meet to comply with the standards?
§ 63.3350If I use a control device to comply with the emission standards, what monitoring must I do?
§ 63.3360What performance tests must I conduct?
Requirements for Showing Compliance63.3370
§ 63.3370How do I demonstrate compliance with the emission standards?
Notifications, Reports, and Records63.3400 – 63.3410
§ 63.3400What notifications and reports must I submit?
§ 63.3410What records must I keep?
Delegation of Authority63.3420
§ 63.3420What authorities may be delegated to the States?
Table 1 to Subpart JJJJ of Part 63
Operating Limits if Using Add-On Control Devices and Capture System
Table 2 to Subpart JJJJ of Part 63
Applicability of 40 CFR Part 63 General Provisions to Subpart JJJJ