(1) The department of human services shall establish and operate facilities necessary for the care, education, training, treatment, and rehabilitation of those juveniles legally committed to its custody under section 19-2-601 or 19-2-907. As necessary and when funds are available for such purposes, such facilities may include but shall not be limited to:

(a) Group care facilities and homes, including halfway houses, nonresidential transition programs, day reporting and day treatment centers, and staff secure facilities;

(b) Training schools;

(c) Conservation camps;

(d) Diagnostic and evaluation centers and receiving centers; and

(e) Any programs necessary to implement the purposes of this section for juveniles in community placement.

(2) The department shall cooperate with other governmental units and agencies, including appropriate local units of government, state departments and institutions, and agencies of the federal government in order to facilitate the training and rehabilitation of youth.

(3) Once a juvenile is committed to the department of human services, the juvenile shall remain in a facility directly operated by the department of human services or in a secure facility contracted for by the department of human services until his or her commitment expires as provided by law, parole status is granted pursuant to part 10 of this article, or a community placement is approved by order of the juvenile court and by a juvenile community review board, if one exists in the county of proposed placement.

(4) The department of human services shall contract with the department of corrections to house in an appropriate facility operated by the department of human services and, as appropriate, to provide services to any juvenile under the age of fourteen years who is sentenced as an adult to the department of corrections. On reaching fourteen years of age, any juvenile sentenced to the department of corrections shall be transferred to an appropriate facility operated by the department of corrections for the completion of the juvenile's sentence.