This publication contains the formal papers and the summaries of informal discussions from a "Knowledge Utilization Conference on the Use of Volunteers in Vocational Rehabilitation and Public Welfare Agencies." The conference took place June 4-6, 1972, in the Washington, D.C. area. It was sponsored by the International Association of Rehabilitation Facilities, and was supported by grant from the Social and Rehabilitation Service, Department of Health, Education, and Welfare. Speakers at the meeting were federal and state officials of rehabilitation and welfare programs and representatives of organizations in the private sector that rely extensively on the talents of volunteer workers to improve and expand services for disabled and needy people. Program highlights included: (1) descriptions of a number of programs that now use volunteers to help serve poor and handicapped people, (2) the federal view of present programs and future prospects in the use of volunteers, (3) discussions of the psychosocial, economic, and legal aspects of voluntarism, (4) a personal view by an experienced volunteer, and (5) a look at new directions that voluntarism is taking and is expected to take as the field expands, especially in rehabilitation programs, which are not well established in utilizing volunteers as are public welfare programs. (Author)