On April 18, the American Petroleum Institute (API) and the American Fuel & Petrochemical Manufacturers (AFPM) submitted comments to EPA regarding a proposal to establish a voluntary verification program for renewable fuel credits. The groups say that they “generally support” the proposal – the Renewable Identification Number (RIN) Quality Assurance Program – and acknowledge that it would aid in efforts against fraud in the market for renewable fuel credits, while providing parties that unwittingly purchase invalid RINs with a legal defense. However, API and AFPM did express concerns that the program would move some enforcement responsibility from EPA to third-party auditors.