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of guidelines for attaining implementation of instream flow recommendations; and 3) establishment of an effective communication network pertaining to instream flow activities, data and information. With this charge, the IFG undertook development of a comprehensive state-of-the-art methodology for identification of instream requirements (objective 1) in three steps: 1, Synthesize and transfer to the field of practical quantitative techniques based on state-of-the-art information for immediate application to current problems. 2. Promote and direct future research and development of quantitative techniques and data collection efforts to maximize their usefulness to the fishery management and water administration agencies, 3, Continually update and improve operational techniques as new tech- nology is shown to be practical. By fall of 1977 the IFG had drawn upon experiences of western fishery biologists and water planners to synthesize a unique state-of-the-art approach to instream flow assessments, The IFG's Incremental Methodology attempts to provide for the quantification of the amount of potential habitat available for a species by life history stage as a function of stream flow, Initial application of IFG1s methodology to selected western instream flow questions proved to be very promising. These early successes resulted ln a notable demand for wide scale application, and stimulated considerable interest in the use of this new tool to address a variety of questions pertaining to impacts of changes in flow regime or stream channel geometry on instream fishery resources. In November 1978 it was both timely and appropriate that the IFG's methodology be reviewed by user groups and the scientific community to obtain their assessment of this new tool's ability to do the job it was originally J ~ , 2