The Biosolids Assurance Scheme is owned and operated by Assured Biosolids Limited, which is a not-for-profit company set up by 11 UK Water and Sewerage Companies.
NSF Certification UK has been appointed as the independent Certification Body to audit scheme members annually.
The operations and marketing are funded by members based on quantities of biosolids recycled to agricultural land. The result of certification of all activities (from sludge treatment to biosolids application to land) will result in BAS Certified Biosolids.
Assured Biosolids Limited is managed by a board of directors appointed from the 11 UK Water and Sewerage Companies.