Company Guarantors Assured Food Standards (AFS) is a not for profit company, owned and created by the British farming and food industry but operating independently. We own and operate Red Tractor Assurance, the largest farm and food assurance scheme in the UK. Red Tractor is the only scheme that integrates a range of issues, food safety, animal health and welfare and controls on environmental pollution into a single set of standards and a single inspection. As a non-for-profit company we have six company guarantors: NFU, Dairy UK, Ulster Farmers' Union, AHDB, BRC and NFU Scotland. The Food and Drink Federation (FDF) also act as an observer.