40 CFR § 503.4 - Relationship to other regulations.
---identifier: "/us/cfr/t40/s503.4"source: "ecfr"legal_status: "authoritative_unofficial"title: "40 CFR § 503.4 - Relationship to other regulations."title_number: 40title_name: "Protection of Environment"section_number: "503.4"section_name: "Relationship to other regulations."chapter_name: "ENVIRONMENTAL PROTECTION AGENCY"subchapter_number: "O"subchapter_name: "SEWAGE SLUDGE"part_number: "503"part_name: "STANDARDS FOR THE USE OR DISPOSAL OF SEWAGE SLUDGE"positive_law: falsecurrency: "2026-03-24"last_updated: "2026-03-24"format_version: "1.1.0"generator: "[email protected]"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 )."regulatory_source: "58 FR 9387, Feb. 19, 1993, unless otherwise noted."cfr_part: "503"---
Identifier
/us/cfr/t40/s503.4
Currency
2026-03-24
Positive Law
No
Updated
2026-03-24
Chapter
Environmental Protection Agency
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... 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 ).
# 503.4 Relationship to other regulations.Disposal of sewage sludge in a municipal solid waste landfill unit, as defined in 40 CFR 258.2, that complies with the requirements in 40 CFR part 258 constitutes compliance with section 405(d) of the CWA. Any person who prepares sewage sludge that is disposed in a municipal solid waste landfill unit shall ensure that the sewage sludge meets the requirements in 40 CFR part 258 concerning the quality of materials disposed in a municipal solid waste landfill unit.