As noted earlier, nonincarceration sentences include economic sanctions, probation, and intermediate sanctions; incarceration sentences include both short-term and long-term confinement. As described in the next two chapters, short sentences are sometimes linked with an intermediate sanction, so offenders spend part of their sentence in jail or prison and part of their sentence under supervision in the community. Finally, there are sentences of death. For sentences of incarceration, indeterminate and determinate sentences are the two primary models used throughout the United States, although there are many variations for each of these. Indeterminate sentences blend the decision by the sentencing judge and a later decision by a release authority to determine the actual time served. At the time of sentencing, judges sentence offenders to indeterminate sentences, with a minimum and maximum amount of time to be served (for example, two to five years or ten to twenty years). After serving the minimum term, offenders are eligible to be released and their cases are reviewed by a parole board. The parole board determines the release date any time between the minimum and maximum sentence. If a parole board never grants parole, the offender serves the maximum sentence and then must be released. The parole decision and postrelease supervision in the community are described in Chapter 6. indeterminate sentences sentences that have a minimum and maximum time to serve; a decision by a release authority determines the actual time served within that range As the Reformatory Era of prison operations was initiated in the United States around 1870, many states and prisons began to implement the concepts of rehabilitation and preparing inmates for return to the community. By the beginning of the twentieth century, preparation for release was considered an important part of the prison