Home » Guidelines » International Guidelines International Guidelines UK Department for Environment Food and Rural Affairs (DEFRA) – Sewage sludge in agriculture code of practise. USA United States Environmental Protection Agency (US EPA) Biosolids laws and regulations Canada Canada-Wide Approach for the Management of Wastewater Biosolids (Oct. 2012) Canada-Wide Approach Questions & Answers (2012) CCME biosolids website A Review of the Current Canadian Legislative Framework for Wastewater Biosolids (2010) European Commission Sewage Sludge Directive 86/278/EEC. International ISO/DIS 19698(en) Sludge recovery, recycling, treatment and disposal — Beneficial use of biosolids — Land applications