These programs were introduced in the 1960's and, like the rest of the criminal justice system, have undergone many changes in the last 15 years. The programs operate under many legal and administrative arrangements. Many were started without any formal authorization through law or court rule. Prosecutors administer about one-third of the programs, and probation agencies administer another one-fourth of the programs. Diversion programs have increasingly become part of the criminal justice system rather than alternatives to it. The programs typically serve moderate-sized urban communities. Most have automatic exclusions from eligibility, based on the charges or the prior record. Most also use existing community resources heavily to provide needed services. The successful completion of the diversion requirements usually leads to the automatic dismissal of charges. Tables, appended study instrument, and list of programs contacted.