Congress and President Bush determined that the United States should be producing specified amounts of cellulosic biofuel as part of the Energy Independence and Security Act of 2007. The trouble with the approach in 2007, which is still a problem today, is that a technology to produce cellulosic biofuel economically does not exist to the extent that the legislation requires. So, the Environmental Protection Agency (EPA) has lowered the requirement for cellulosic biofuel every year. However, its lower requirement is not low enough because despite mandates, industry still cannot produce the lowered amount. So, now EPA has decided to change the definition of what constitutes cellulosic biofuels so that it can still require larger numbers than are feasible. The new definition allows an energy product that is 75 percent cellulosic to count as if it is 100 percent cellulosic.[1]
