BEE-Line Software has developed enhanced versions of popular EPA dispersion models, such as AerMod, ISCST3 and ISC-Prime.   Intuitive data entry, full Excel-compatible cut/copy/paste of all data grids, DEM digitized terrain data support, on-screen graphics -- all these and so much more make BEE-Line Software the choice of both beginners and experts.  We think you will agree that our software programs are a much needed alternative to their overly complex counterparts offered by our competition.