In the private sector, a permanent employee who belongs to the state National Guard or the U.S. reserves is entitled to up to 15 days of unpaid leave per calendar year for training with the U.S. Armed Forces without loss of vacation, sick leave, bonus, advancement, or other advantages of employment.
A private employee must be reinstated to his or her previous nontemporary job, or a job with similar status, pay, and seniority, and with full retention of his or her benefits, provided he or she gives evidence of satisfactory completion of service and is still qualified to perform the duties of the job (CO Rev. Stat. Sec. 28-3-609et seq.).