1. LawStack
  2. Title 40 - Protection of Environment
  3. Chapter I - ENVIRONMENTAL PROTECTION AGENCY
  4. Subchapter N - EFFLUENT GUIDELINES AND STANDARDS
  5. Part 421 - NONFERROUS METALS MANUFACTURING POINT SOURCE CATEGORY
  6. Topic - General Provisions
  7. 40 CFR § 421.4
40 CFR § 421.4
Compliance date for pretreatment standards for existing sources (PSES)
June 9, 2020
CFR

The PSES compliance deadline in subparts A through M is March 8, 1987. The PSES compliance deadline for plants in subparts N through AE is September 20, 1988.

[50 FR 52776, Dec. 26, 1985]

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§ 421.3 Monitoring and reporting requirements
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§ 421.5 Removal allowances for pretreatment standards

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