Under the authority ofamendments to the CleanAirAct, the EPA mandates the use of cellulosic biofuels and fines refiners for failing to use the mandated amount.
Baucus should be very aware of this from his experiences during the 1990 House-Senate conference committee on CleanAirActamendments, when he failed to persuade the Senate to adopt language requiring the EPA to set CO2 emission standards for motor vehicles.