Fire Regime Condition Class (FRCC) assessments have been widely used for evaluating ecosystem status in many areas of the U.S. FRCC employs state-and-transition modeling to describe historical vegetation and fire regimes, which provides reference information related to landscape fire frequency, severity, and vegetation composition. Similarity indexing is used to compare historical versus current vegetation and fire regimes. This technique allows field and GIS users to consistently assess FRCC for fire management plans and related planning efforts. Current applications of FRCC data include project design, risk assessments, treatment prioritization, fire use decisions, and evaluation of ecosystem sustainability. This all day workshop will be held in Albuquerque, NM on March 27, 2012 and in Flagstaff, AZ on March 29, 2012.