The Youthful Offender System (YOS) is a medium security prison in Pueblo, Colorado.

The judge makes this determination based on the offender's age and perceived amenability for rehabilitation.

[1] YOS is set up as a four-part continuum of rehabilitation for youth offenders.

[2] YOS has the lowest recidivism rate of any Colorado state prison.

[3] More than 80% of YOS offenders leave the facility with a high school diploma.