Daily eCFR

Subpart I—Acid Pickling Subcategory

Acid Pickling Subcategory

ContainsSections 420.90–420.97

CorpusDaily eCFR

Displayed edition2026-09-17

Last updated2026-09-17

Sections

420.90
§ 420.90 Applicability; description of the acid pickling subcategory.
420.91
§ 420.91 Specialized definitions.
420.92
§ 420.92 Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available (BPT).
420.93
§ 420.93 Effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable (BAT).
420.94
§ 420.94 New source performance standards (NSPS).
420.95
§ 420.95 Pretreatment standards for existing sources (PSES).
420.96
§ 420.96 Pretreatment standards for new sources (PSNS).
420.97
§ 420.97 Effluent limitations representing the degree of effluent reduction attainable by the application of the best conventional technology (BCT).