Sep 18 Local News EPA Waives Need to Use Cleaner-Burning Gas to Ease Supplies Several counties are usually under orders to use only RFG because of their smog problems. But RFG is in short supply. So through the end of September, gas suppliers in those areas can look to more readily available fuels. By Kristin Espeland Sep 18 Local News EPA Waives Need to Use Cleaner-Burning Gas to Ease Supplies Kristin Espeland