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Electronic Code of Federal Regulations (e-CFR)
Title 40—Protection of Environment
CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY
SUBCHAPTER C—AIR PROGRAMS
PART 57—PRIMARY NONFERROUS SMELTER ORDERS
Subpart D—Supplementary Control System Requirements
40 CFR Subpart D - Subpart D—Supplementary Control System Requirements
CFR
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§ 57.401 General requirements.
§ 57.402 Elements of the supplementary control system.
§ 57.403 Written consent.
§ 57.404 Measurements, records, and reports.
§ 57.405 Formulation, approval, and implementation of requirements.