40 C.F.R. § 503.30
Scope.
Cite as 40 C.F.R. § 503.30 (2026)
(a) This subpart contains the requirements for a sewage sludge to be classified either Class A or Class B with respect to pathogens. (b) This subpart contains the site restrictions for land on which a Class B sewage sludge is applied. (c) This subpart contains the pathogen requirements for domestic septage applied to agricultural land, forest, or a reclamation site. (d) This subpart contains alternative vector attraction reduction requirements for sewage sludge that is applied to the land or placed on a surface disposal site.