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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 57 - PART 57—PRIMARY NONFERROUS SMELTER ORDERS
Subpart A [§ 57.101 - § 57.111] - Subpart A—General
Subpart B [§ 57.201 - § 57.205] - Subpart B—The Application and the NSO Process
Subpart C [§ 57.301 - § 57.305] - Subpart C—Constant Controls and Related Requirements
Subpart D [§ 57.401 - § 57.405] - Subpart D—Supplementary Control System Requirements
Subpart E [§ 57.501 - § 57.505] - Subpart E—Fugitive Emission Evaluation and Control
Subpart F [§ 57.601 - § 57.606] - Subpart F—Research and Development Requirements
Subpart G [§ 57.701 - § 57.705] - Subpart G—Compliance Schedule Requirements
Subpart H [§ 57.801 - § 57.816] - Subpart H—Waiver of Interim Requirement for Use of Continuous Emission Reduction Technology
Subpart 0 -
Appendix Appendix A - Appendix A to Part 57—Primary Nonferrous Smelter Order (NSO) Application
authority:
Secs. 110, 114, 119, 301, Clean Air Act, as amended (
42 U.S.C. 7410
,
7414
,
7419
,
and
; sec. 406 of Pub. L. 95-95
source:
50 FR 6448, Feb. 15, 1985, unless otherwise noted.
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