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Regulations last checked for updates: May 01, 2025
Title 40 - Protection of Environment last revised: Nov 01, 2025
All Titles
Title 40
Chapter I
Part 63
Subpart TTT - Subpart TTT—National Emission Standards for Hazardous Air Pollutants for Primary Lead Smelting
§ 63.1541 - Applicability.
§ 63.1542 - Definitions.
§ 63.1543 - Standards for process and process fugitive sources.
§ 63.1544 - Standards for fugitive dust sources.
§ 63.1545 - Compliance dates.
§ 63.1546 - Performance testing.
§ 63.1547 - Monitoring requirements.
§ 63.1548 - Notification requirements.
§ 63.1549 - Recordkeeping and reporting requirements.
§ 63.1550 - Delegation of authority.
§ 63.1551 - Affirmative defense for exceedance of emission limit during malfunction.
Appendix - Table 1 to Subpart TTT of Part 63—General Provisions Applicability to Subpart TTT
authority:
42 U.S.C. 7401
source:
57 FR 61992, Dec. 29, 1992, unless otherwise noted.
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