This guide provides a model for an internship program for high school seniors in citizenship and government. Based on a program used in Oregon for eight years, the model can be incorporated into existing high school civics courses to enrich student learning of civics and government. The purpose of the model program is to place seniors as interns in community government and service agencies. The guide outlines program planning, administration, and evaluation. Chapter I examines the decision to adopt the program: how to identify the need for such a program in the existing curriculum and how to determine what its outcomes will be. Chapter II explores aspects of program feasibility including support from the school and community populations and availability of resources. Chapter III describes the planning process in terms of management structure, roles of participating schools and agencies, and role and objectives of the program coordinator. Chapter IV explains how to secure commitments for support and participation and to recruit agencies to sponsor interns. Chapter V thoroughly outlines program implementation in terms of staffing, selecting and placing students, scheduling, grading, and credits. Chapter VI suggests evaluation methods to assess student, school, program, and placement site participation. Appendices offer a model curriculum, bibliography, forms, and evaluation instruments. (AV)