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Regulations last checked for updates: May 14, 2025
Title 40 - Protection of Environment last revised: Apr 14, 2028
All Titles
Title 40
Chapter I
Part 63
Subpart NNNNNN - Subpart NNNNNN—National Emission Standards for Hazardous Air Pollutants for Chemical Manufacturing Area Sources: Chromium Compounds
APPLICABILITY AND COMPLIANCE DATES
§ 63.11407 - Am I subject to this subpart?
§ 63.11408 - What are my compliance dates?
STANDARDS AND COMPLIANCE REQUIREMENTS
§ 63.11409 - What are the standards?
§ 63.11410 - What are the compliance requirements?
OTHER REQUIREMENTS AND INFORMATION
§ 63.11411 - What General Provisions apply to this subpart?
§ 63.11412 - What definitions apply to this subpart?
§ 63.11413 - Who implements and enforces this subpart?
Appendix - Table 1 to Subpart NNNNNN of Part 63—HAP Emissions Sources
Appendix - Table 2 to Subpart NNNNNN of Part 63—Applicability of General Provisions to Subpart NNNNNN
authority:
42 U.S.C. 7401
source:
57 FR 61992, Dec. 29, 1992, unless otherwise noted.
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