All inmates committed to the custody of the department are sent to the Reception and Diagnostic Unit (RDU) for evaluation and classification. During the RDU process (usually lasting two weeks), the inmate receives a physical examination, psychological evaluation, educational assessment and a substance abuse evaluation. Information received during the reception and diagnostic process is reviewed by a classification committee and entered on a classification sheet.
The four inmate classifications are close (those serving long-term sentences, have an escape history or a disciplinary problem), medium (offenders who have demonstrated an ability to follow instructional rules and regulations, may have a considerable amount of prison time left to serve and who may be an escape risk at a lower custody level), minimum (those who have continually demonstrated the ability to follow instructions and are generally within two years of release and who don’t represent an escape risk), and community (those who follow institutional rules and regulations, are serving time for low-risk offenses, have an anticipated release date, are 120 days disciplinary free and do not normally represent a security risk).