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Title 40

Displaying title 40, up to date as of 6/16/2026. Title 40 was last amended 6/15/2026.
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Title 40Protection of EnvironmentPart / Section
Chapter IEnvironmental Protection Agency1 – 1099
Subchapter NEffluent Guidelines and Standards400 – 471
Part 403General Pretreatment Regulations for Existing and New Sources of Pollution403.1 – 403.20
§ 403.1Purpose and applicability.
§ 403.2Objectives of general pretreatment regulations.
§ 403.3Definitions.
§ 403.4State or local law.
§ 403.5National pretreatment standards: Prohibited discharges.
§ 403.6National pretreatment standards: Categorical standards.
§ 403.7Removal credits.
§ 403.8Pretreatment Program Requirements: Development and Implementation by POTW.
§ 403.9POTW pretreatment programs and/or authorization to revise pretreatment standards: Submission for approval.
§ 403.10Development and submission of NPDES State pretreatment programs.
§ 403.11Approval procedures for POTW pretreatment programs and POTW granting of removal credits.
§ 403.12Reporting requirements for POTW's and industrial users.
§ 403.13Variances from categorical pretreatment standards for fundamentally different factors.
§ 403.14Confidentiality.
§ 403.15Net/Gross calculation.
§ 403.16Upset provision.
§ 403.17Bypass.
§ 403.18Modification of POTW pretreatment programs.
§ 403.19Provisions of specific applicability to the Owatonna Waste Water Treatment Facility.
§ 403.20Pretreatment Program Reinvention Pilot Projects Under Project XL.
Appendixes A-C to Part 403 [Reserved]
Appendix D to Part 403
Selected Industrial Subcategories Considered Dilute for Purposes of the Combined Wastestream Formula
Appendix E to Part 403
Sampling Procedures
Appendix F to Part 403 [Reserved]
Appendix G to Part 403
Pollutants Eligible for a Removal Credit