This report presents a model of collaborative effort that established a network of 15 university-based and 2 non-university based Centers for Environmental Education (CEE) in the Tennessee River watershed region. The report begins by establishing definitions for a Center for Environmental Education and a network system, both of which are components of the model. Next, the history of this Tennessee Valley Authority (TVA)-sponsored network is provided. This is followed by seven guidelines for new environmental education center development or evaluation of established center programs: (1) the host institution for the center must include service as an integral part of its philosophy; (2) the center should have a strong base of support; (3) the center staff should include a director who has the authority to develop the center, as well as a full-time assistant director who is responsible for managing the programs; (4) a strong network of communication must be established and maintained; (5) specific attainable goals for the center should be established; (6) functions of the center should be identified and ranked according to degree of emphasis given to each; and (7) an advisory committee should be formed to help guide the center's development. Each guideline is followed by the principle upon which it is based and ways that it can be applied. Survey questions administered to TVA-sponsored centers and interview questions administered to center directors are included in a methods section. Appendices provide a map of the Tennessee River Watershed and location of TVA-sponsored CEE, and a listing of the TVA-sponsored CEE. (Contains 8 references.) (MCO)