If your parents (or court-appointed legal guardians) maintain Colorado domicile for four years and establish domicile elsewhere, you will remain eligible for in-state tuition if:
Your parents leave Colorado after your junior year of high school and if you enroll at a Colorado public college or university within three years and six months after your parents leave Colorado.
You maintain continuous Colorado domicile. This provision will generally be met if you continue to reside in Colorado after your parents leave or if you reside outside the State only temporarily (for example, to attend college or for military service) while maintaining Colorado domiciliary connections such as voter registration and income tax filing. (See Domicile.)