Under the default method, eighty percent of the total amount of sulfur dioxide allowances available for allocation each year will be allocated to Acid Rain Program units with coal as their primary or secondary fuel or residual oil as their primary fuel, listed in the Administrator's Emissions Scorecard 2000, Appendix B (2000 Data for SO2, NOx, CO2, Heat Input, and Other Parameters), Table B1 (All 2000 Data for All Units).