Subpart W—Primary Precious Metals and Mercury Subcategory

1. CFR
2. ›
3. Title 40
4. ›
5. Chapter I
6. ›
7. Part 421
8. ›
9. Subpart W

Sections

• 421.250
  § 421.250 Applicability: Description of the primary precious metals and mercury subcategory.
• 421.251
  § 421.251 Specialized definitions.
• 421.252
  § 421.252 Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
• 421.253
  § 421.253 Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.
• 421.254
  § 421.254 Standards of performance for new sources.
• 421.255
  § 421.255 [Reserved]
• 421.256
  § 421.256 Pretreatment standards for new sources.
• 421.257
  § 421.257 [Reserved]