C.R.S. § 28-3-313

Commissions of National Guard officers shall be terminated as provided by federal law, but, in time of war or other declared emergency, any officer who reaches retirement age may, in the discretion of the commander in chief, on the recommendation of the adjutant general, be continued in the active service of the state defense force in his or her then grade and assignment for the duration of the war or emergency and for six months thereafter.