Why do some states want different clean gasoline programs than the Federal program?
A. The federal gasoline program results in cleaner air. But sometimes states need to obtain even more emission reductions than can be achieved by meeting the federal standards. For example, some states require CG in nonattainment areas to have lower volatility than the required 7.8 psi federal gasoline standards because they want the benefit of lower VOC emissions. In other cases, local fuel providers have worked with states to develop an alternative fuel specification that achieves more emissions reductions than federal RFG.