 The agency awards Renewable Transport Fuel Certificates (RTFCs) to suppliers of biofuels in the UK, ensures companies meet their annual obligations and runs the RTFO’s carbon and sustainability reporting system.The key stated aim of the UK Government in introducing the RTFO was to reduce carbon emissions.Under the RTFO, the RFA asks fuel suppliers to report on the specific type and origin of biofuels, the compliance of biofuel crops with existing environmental and social sustainability criteria and the greenhouse gas emissions reductions achieved by using biofuels (based on an analysis of direct lifecycle contributions of crops to greenhouse gas emissions).