Code of Federal Regulations Title 40. Protection of Environment § 40.503.25 Operational standards—pathogens and vector attraction reduction

(a) Pathogens—sewage sludge (other than domestic septage). The Class A pathogens requirements in § 503.32(a) or one of the Class B pathogen requirements in § 503.32(b)(2) through (b)(4) shall be met when sewage sludge is placed on an active sewage sludge unit, unless the vector attraction reduction requirement in § 503.33(b)(11) is met.

(b) Vector attraction reduction—sewage sludge (other than domestic septage). One of the vector attraction reduction requirements in § 503.33(b)(1) through (b)(11) shall be met when sewage sludge is placed on an active sewage sludge unit.

(c) Vector attraction reduction—domestic septage. One of the vector attraction reduction requirement in § 503.33(b)(9) through (b)(12) shall be met when domestic septage is placed on an active sewage sludge unit.