Colo. Rev. Stat. § 24-50-208
The state personnel director may adopt procedures establishing a program for voluntary separation incentives available to all state employees in lieu of layoffs based on a determination by the head of a principal department or institution of higher education, including the Auraria higher education center established in article 70 of title 23, C.R.S., that the program is necessitated by a shortage of work, shortage of funds, or a reorganization. Any program established pursuant to this section shall not conflict with laws, rules, or procedures governing the state personnel system or the public employees' retirement association. A voluntary separation incentive shall not be considered a perquisite for purposes of section 24-30-202 (22).
C.R.S. § 24-50-208