The document contains transcripts of the Congressional hearings on the Developmental Disabilities Act Amendments of 1978 (H.R. 11764), legislation designed to improve and coordinate provision of services to the developmentally disabled. Presented along with the text of H.R. 11764 are the texts of H.R. 278, H.R. 2151, and H.R. 10059 (all part of the Autistic Children Research Act). Statements from the following individuals are among those give (affiliation in parentheses): Mary S. Akerley (past president, National Association for Autistic Children); Roy V. Bruninghaus (executive director, North Carolina Council on Developmental Disabilities); Robert R. Humphreys (commissioner, Rehabilitation Services Administration); Norman V. Lourie (chairman, National Task Force on Developmental Disabilities); Richard Schiefelbusch (American Association of University Affiliated Programs for the Mentally Disabled); and Richard E. Verville (counsel, National Easter Seal Society for Crippled Children and Adults). Also provided are additional materials which include a summary of service network plan year objectives and associated implementation activities; national projections of the total number of developmentally disabled to be served for fiscal year 1978; "Being Disabled in America" (a concept paper by R. Humphreys; and a statement submitted by the National Association of Private Residential Facilities for the Mentally Retarded. (SBH)