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Title 40

Displaying title 40, up to date as of 7/13/2026. Title 40 was last amended 7/13/2026.
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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 LLLNational Emission Standards for Hazardous Air Pollutants From the Portland Cement Manufacturing Industry63.1340 – 63.1359
General63.1340 – 63.1341
§ 63.1340What parts of my plant does this subpart cover?
§ 63.1341Definitions.
Emission Standards and Operating Limits63.1342 – 63.1348
§ 63.1342Standards: General.
§ 63.1343What standards apply to my kilns, clinker coolers, raw material dryers, and open clinker storage piles?
§ 63.1344 [Reserved]
§ 63.1345Emissions limits for affected sources other than kilns; clinker coolers; new and reconstructed raw material dryers.
§ 63.1346Operating limits for kilns.
§ 63.1347Operation and maintenance plan requirements.
§ 63.1348Compliance requirements.
Monitoring and Compliance Provisions63.1349 – 63.1352
§ 63.1349Performance testing requirements.
§ 63.1350Monitoring requirements.
§ 63.1351Compliance dates.
§ 63.1352Additional test methods.
Notification, Reporting and Recordkeeping63.1353 – 63.1355
§ 63.1353Notification requirements.
§ 63.1354Reporting requirements.
§ 63.1355Recordkeeping requirements.
Other63.1356 – 63.1359
§ 63.1356Sources with multiple emissions limit or monitoring requirements.
§ 63.1357 [Reserved]
§ 63.1358Implementation and enforcement.
§ 63.1359 [Reserved]
Table 1 to Subpart LLL of Part 63
Applicability of General Provisions
Table 2 to Subpart LLL of Part 63
1989 Toxic Equivalency Factors (TEFs)