Provided in this document are the text of H.R. 4971, a record of testimony offered in a congressional hearing, and a wide variety of supplemental materials. H.R. 4971 is a bill to amend the Juvenile Justice and Delinquency Prevention (JJDP) Act of 1974 to authorize appropriations for fiscal years 1985 through 1989 and for other purposes. Numerous issues relating to the bill are discussed, including (1) juvenile crime; (2) allocation of funds; (3) missing children; (4) runaways; (5) deinstitutionalization of status offenders; (6) reliability and validity of program monitoring reports; (7) prohibition of experimentation on juveniles; (8) activities of the JJDP office; (9) use of for-profit organizations to provide services; and (10) delinquency prevention. Numerous appended materials include descriptions of state juvenile justice programs; a policy statement of an advocacy organization; and brief discussions of legal issues, related statistics, youth advocacy grant audits, and the establishment of the National Advisory Committee for JJDP. Also provided in the appended materials are the Department of Health and Human Service's annual report to the Congress for fiscal year 1982 on the status and accomplishments of centers funded under the Runaway and Homeless Youth (RHY) Act; the General Accounting Office's review of the RHY program; the seventh annual report of the National Advisory Committee for JJDP; advance reports on the 1979 censuses of private and public juvenile facilities; a study investigating the link between learning disabilities and juvenile delinquency; a paper on the removal of juveniles from adult jails in Illinois; an issue brief on federal efforts concerning runaway youth; a paper on runaway and homeless youth in New York City; an article about the effects of crowding on program implementation in juvenile services in Florida; a research note on physical punishment and delinquency; an article focusing on trends in serious juvenile crime; and articles on rethinking juvenile justice policy, private prisons, and firearms and suicide in the United States. (RH)