The final rule allows certification test fuels to be formulated using normal refinery blendstocks as an alternative to sampling directly from finished gasoline supplies. If this scrutiny reveals that a certification test fuel was formulated improperly, EPA may deny or revoke a certification, and if appropriate may assess penalties. A request for complete documentation of test fuel formulation might be made because EPA has reason to believe that specific test fuels have been improperly formulated or might be conducted by EPA on a random basis. In cases where a fuel supplier considers such fuel blending information proprietary, it may be transmitted directly to EPA, without being revealed to the certifier. Such a separate transmittal should be noted in the response to the Agency's request.
Special requirements exist for test fuels under the fuel-specific certification option.