Code of Federal Regulations > Title 40 > Chapter I > Part 503 - PART 503—STANDARDS FOR THE USE OR DISPOSAL OF SEWAGE SLUDGE

Regulations last checked for updates: May 17, 2025

Title 40 - Protection of Environment last revised: Nov 17, 2025

Subpart A [§ 503.1 - § 503.9] - Subpart A—General Provisions

Subpart B [§ 503.10 - § 503.18] - Subpart B—Land Application

Subpart C [§ 503.20 - § 503.28] - Subpart C—Surface Disposal

Subpart D [§ 503.30 - § 503.33] - Subpart D—Pathogens and Vector Attraction Reduction

Subpart E [§ 503.40 - § 503.48] - Subpart E—Incineration

Subpart 0 -

Appendix Appendix A - Appendix A to Part 503—Procedure To Determine the Annual Whole Sludge Application Rate for a Sewage Sludge

Appendix Appendix B - Appendix B to Part 503—Pathogen Treatment Processes

authority: Sections 405 (d) and (e) of the Clean Water Act, as amended by Pub. L. 95-217, sec. 54(d), 91 Stat. 1591 (33 U.S.C. 1345 (d) and (e)); and Pub. L. 100-4, title IV, sec. 406 (a), (b), 101 Stat., 71, 72 (33 U.S.C. 1251

source: 58 FR 9387, Feb. 19, 1993, unless otherwise noted.