§ 423.10 - Applicability.

§ 423.11 - Specialized definitions.

§ 423.12 - Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available (BPT).

§ 423.13 - Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable (BAT).

§ 423.14 - Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best conventional pollutant control technology (BCT). [Reserved]

§ 423.15 - New source performance standards (NSPS).

§ 423.16 - Pretreatment standards for existing sources (PSES).

§ 423.17 - Pretreatment standards for new sources (PSNS).

§ 423.18 - Permit conditions.

§ 423.19 - Reporting and recordkeeping requirements.

Appendix Appendix A - Appendix A to Part 423 - 126 Priority Pollutants