Research was undertaken to evaluate the present resource information management activities of the states as related to state functions, and to develop a concept for planning and designing a comprehensive state or regional information management system. A state-level Environmental Resources Information Management System was conceptualized, supported by an Environmental Information Base incorporating the organized and systemized aggregation of resource information available from all resource agencies. Conceptural format and guidelines for the Information Base includes identification of Resource Subjects related to state agency functions, and a systemized methodology for classifying and indexing data types and parameters. Institutional arrangements for implementing the concepts were formulated. Tables include results from state surveys, and charts show the structure of the Information Management System and Information Base. The methodology would enable a state to develop and implement an Information Base that would provide compatible, accessible information on a timely basis for resource management by all agencies. (Modified author abstract)