The fourth annual report on problems of the deaf concentrates in the area of the mentally retarded deaf. Proposed legislation for 1971 is first presented for hearing aids, audiologists and speech pathologists, pre-nursery school education, and a permanent state commission for the deaf. A survey and proposal for the retarded deaf are described as is the status of the multiply handicapped deaf compiled from a survey of schools and classes in the state. Also discussed are care for the aged deaf and recommendations of the commission. Eleven appendixes including state acts, exhibits, and proceedings comprise the bulk of the document. (RJ)