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National Pollutant Discharge Elimination System (NPDES)

Part 403 General Pretreatment Regulations for Existing and New Sources of Pollution

Documents related to part 403 general pretreatment regulations for existing and new sources of pollution.

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43 FR 27736 - 27773 General Pretreatment Regulations at 40 CFR Part 403 Final.pdf (PDF)(38 pp, 6 MB)
42 FR 6476 - 6502 General Pretreatment Regulations at 40 CFR Part 403 Proposed.pdf (PDF)(27 pp, 5 MB)