The Industrial Source Complex Short-Term model is a steady-state Gaussian plume model which can be used to assess pollutant concentrations from a wide variety of sources associated with an industrial source complex. The model can account for settling and dry deposition of particulates, downwash, area, line and volume sources, plume rise as a function of downward distance, separation of point sources, and limited terrain adjustment. Average concentration or total deposition may be calculated in 1- ,2- ,3- ,4- ,6- ,8- ,12- and/or 24-hour time periods. An 'N'-day average concentration (or total deposition) over the total number of hours may also be computed. Software Description: The model is written in the FORTRAN programming language for implementation on an IBM PC microcomputer. Data is in compressed format but a dearchive utility is included.