Correctional boot camps originated in the 1980s and use a paramilitary model with strict discipline, physical training, and treatment programs to help offenders develop desirable traits. By the mid-1990s, over 7,000 offenders had gone through boot camps in 30 states and the Federal Bureau of Prisons. Boot camps involve a direct sentence of 90 to 180 days that offenders can graduate from or voluntarily drop out of. Residential community correctional facilities provide an alternative to prison by allowing offenders to live and work in the community while receiving treatment and filling the gap between prison and release. Community drug treatment programs use different levels of care from detoxification to long-term residential therapeutic communities to outpatient treatment. Electronic monitoring programs track offenders'