The Manpower Development Staff, Office of Water Program Operations, Environmental Protection Agency (EPA) is responsible for forecasting the number and types of personnel needed by various levels of government, private, industry, and other organizations which have a role in implementing this legislation. To assist in this determination process the EPA is presently working with and assisting state and local governments in establishing their own in-house manpower planning capabilities by developing a systematic approach to manpower planning. One aspect of this is the development of manpower planning criteria. The criteria presented herein consist of selected programs definitions, associated occupation descriptions and staffing guides for estimating state water pollution control agency manpower and training requirements.