The Fire Effects Tradeoff Model Version 4 (FETM 4) is a landscape-scale, strategic planning model designed to simulate the long-term tradeoffs between wildland fire and various fuel treatment alternatives over large areas of the landscape encompassing diverse environmental conditions, natural fire regimes, and land management policies. FETM 4 has nationwide application, and can be used by any federal, state, or private organization. The model is aimed at land management planners, fire planners, air quality specialists, and other resource specialists who seek a model capable of assessing the long-term consequences of land management practices, and which can provide the information needed to: 1) Support budgeting and planning decisions 2) Identify the economic and environmental tradeoffs between fuel treatment alternatives and wildland fire 3) Assess the long-range impacts to ecosystems 4) Assist fuel specialists in identifying specific vegetation types to target for fuel reduction.