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Title 40

Displaying title 40, up to date as of 7/14/2026. Title 40 was last amended 7/14/2026.
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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 KKKKKNational Emission Standards for Hazardous Air Pollutants for Clay Ceramics Manufacturing63.8530 – 63.8665
What This Subpart Covers63.8530 – 63.8545
§ 63.8530What is the purpose of this subpart?
§ 63.8535Am I subject to this subpart?
§ 63.8540What parts of my plant does this subpart cover?
§ 63.8545When do I have to comply with this subpart?
Emission Limitations and Work Practice Standards63.8555 – 63.8560
§ 63.8555What emission limitations and work practice standards must I meet?
§ 63.8560What are my options for meeting the emission limitations and work practice standards?
General Compliance Requirements63.8570 – 63.8575
§ 63.8570What are my general requirements for complying with this subpart?
§ 63.8575What do I need to know about operation, maintenance, and monitoring plans?
Testing and Initial Compliance Requirements63.8585 – 63.8605
§ 63.8585By what date must I conduct performance tests?
§ 63.8590When must I conduct subsequent performance tests?
§ 63.8595How do I conduct performance tests and establish operating limits?
§ 63.8600What are my monitoring installation, operation, and maintenance requirements?
§ 63.8605How do I demonstrate initial compliance with the emission limitations and work practice standards?
Continuous Compliance Requirements63.8615 – 63.8620
§ 63.8615How do I monitor and collect data to demonstrate continuous compliance?
§ 63.8620How do I demonstrate continuous compliance with the emission limitations and work practice standards?
Notifications, Reports, and Records63.8630 – 63.8645
§ 63.8630What notifications must I submit and when?
§ 63.8635What reports must I submit and when?
§ 63.8640What records must I keep?
§ 63.8645In what form and for how long must I keep my records?
Other Requirements and Information63.8655 – 63.8665
§ 63.8655What parts of the General Provisions apply to me?
§ 63.8660Who implements and enforces this subpart?
§ 63.8665What definitions apply to this subpart?
Tables to Subpart KKKKK of Part 63
Table 1 to Subpart KKKKK of Part 63
Emission Limits
Table 2 to Subpart KKKKK of Part 63
Operating Limits
Table 3 to Subpart KKKKK of Part 63
Work Practice Standards
Table 4 to Subpart KKKKK of Part 63
Requirements for Performance Tests
Table 5 to Subpart KKKKK of Part 63
Toxic Equivalency Factors
Table 6 to Subpart KKKKK of Part 63
Initial Compliance With Emission Limitations and Work Practice Standards
Table 7 to Subpart KKKKK of Part 63
Continuous Compliance With Emission Limitations and Work Practice Standards
Table 8 to Subpart KKKKK of Part 63
Compliance Dates
Table 9 to Subpart KKKKK of Part 63
Deadlines for Submitting Notifications
Table 10 to Subpart KKKKK of Part 63
Requirements for Reports
Table 11 to Subpart KKKKK of Part 63
Applicability of General Provisions to Subpart KKKKK