To help combat mental retardation, 136 recommendations are made for the following: establishment by statute of a division of mental retardation, an advisory council, and a coordinating council of agencies; changes in laws governing the Arizona Children's Colony, additional public school legislation, and a study of civil and criminal law; immediate construction of habilitative residential care centers, service facilities, and personnel training facilities; training of health personnel at all levels of services, teaching, administration, and research; prevention; expansion of the organizations and agencies which have provided services; and expanded research by public and voluntary health organizations. Also provided is a historical background of mental health services and a consideration of other factors relating to the mentally retarded in Arizona. Tables give data on population, waiting lists for services, facilities and services, incidence, number of special classes, prevalence of PKU testing, aid for the disabled, school districts, medical personnel, manpower, and demographic factors; a discussion of metabolic diseases is included. (LE)