Change to cellulosic biofuel producer credit (Sec. 40): Excludes from the definition of cellulosic biofuel any fuels that (1) are more than 4% (determined by weight) water and sediment in any combination or (2) have an ash content of more than 1% (determined by weight) (so-called black liquor). (Effective 2010.)
Deductions for federal subsidies for retiree prescription plans (Sec. 139A): Eliminates the rule that the exclusion for subsidy payments is not taken into account for purposes of determining whether a deduction is allowable for retiree prescription drug expenses. (Effective 2013.)