Principal Biosolids Guidance (EPA/625/R-92/013)

Environmental Regulations and Technology: Control of Pathogens and Vector Attraction in Sewage Sludge is a publication that provides useful guidance for successful compliance with 40 CFR Part 503 Subpart D. This subpart is the regulatory backbone of Class A and Class B pathogen requirements discussed in this Web site as well as the foundation for the Pathogen Equivalency Committee. EPA/625/R-92/013 is a primary reference for regional, state, and local regulatory authorities and their constituents.