To require the Administrator of the Environmental Protection Agency to use the commercially available volume of cellulosic biofuel in setting requirements for the renewable fuel program under the Clean Air Act, and for other purposes.

by striking “, as determined by the Administrator based on the estimate provided under paragraph (3)(A)”;

by striking “the Administrator may also reduce” and inserting “the Administrator shall also reduce”; and

by inserting “For purposes of this subparagraph, the projected volume of cellulosic biofuel production for a calendar year shall not be more than 5 percent or 1 million gallons (whichever is greater) more than the total volume of cellulosic biofuel that was commercially available for the most recent calendar year for which such total volume is known.” after “by the same or a lesser volume.”.