Poster abstract...A First Order Fire Effects Model (FOFEM) was developed to predict the direct consequences of prescribed fire and wildfire. FOFEM was designed for application to most areas of the United States. First order fire effects are the immediate or direct results of a fire. FOFEM computes duff and woody fuel consumption, mineral soil exposure, fire-caused tree mortality, and smoke production for many forest and rangeland ecosystems. Quantitative results from many fire effects studies were summarized for inclusion into the model. FOFEM contains a fire effects calculator to produce the effects of a fire from the burning conditions, and a prescribed fire planner to compute the burn conditions necessary to achieve a desired effect. Default input values are derived from fuel models provided for natural and activity fuels by many forest cover types. The model is implemented in a computer program available for use on a PC or Data General computer.