(1) Reduces inmate idleness, while allowing the inmate to improve and/or develop useful job skills, work habits, and experiences that will assist in post-release employment; and

(2) Ensures that activities necessary to maintain the day-to-day operation of the institution are completed. Sentenced inmates who are physically and mentally able to work are required to participate in the work program. When approved by the Warden or designee, drug treatment programming, education, or vocational training may be substituted for all or part of the work program.