This manual is intended to facilitate the integration of children with mental handicaps into child care centers in Canada and elsewhere. The first chapter looks at the background of integration in early childhood child care programs in Canada and identifies concerns of parents. The second chapter explores the practice of labelling children with disabilities including both positive and negative consequences. Stressed in the third chapter is the need for careful planning and collaboration to ensure the inclusion of all children. The specific roles of administrators, staff, and parents as well as the importance of teamwork are examined next. The fifth chapter, on program development and implementation, discusses the individualized planning process, use of resources, and transitional periods. The last chapter offers eight hypothetical situations presenting dilemmas for problem solving and role playing. Appendices include: a glossary, guidelines for parents choosing a group setting, an inventory of children's needs, and a checklist of program mainstreaming characteristics. Also included are listings of national day care organizations, federal government child care offices, provincial and territorial government day care offices, and a bibliography of 130 items. (DB)