C.R.S. § 24-30-1117

The department of personnel shall have the exclusive authority to purchase, lease, and otherwise acquire motor vehicles for such use by state officers and employees as may be necessitated in the course and conduct of official state business. Except for any vehicles donated to specific state agencies, no motor vehicle shall be purchased, leased, or otherwise acquired by any state agency unless such vehicle is obtained through the department of personnel or under an express waiver granted by the department.