The report describes the procedures for operation of the entire integrated Advanced Utility Simulation Model (AUSM), one of four stationary source emissions and control cost forecasting models developed in 1984 for the National Acid Precipitation Assessment Program (NAPAP). The AUSM projects air emissions of SO2, NOx, and particulates from electric utilities; forecasts changes in emissions resulting from reduction initiatives; and assesses the resulting financial and economic impacts of these initiatives on utilities and consumers. Model results, derived from a 1980 baseline, are generated by state for each year from 1980 to 2009. The AUSM (Version 3.0) is available for remote terminal access and operation at EPA's National Computer Center (NCC). A transcription of the AUSM is also available on magnetic tape.