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

• 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)