C.R.S. § 42-2-109: Release from liability.

(1) Any person who has signed the affidavit of liability which accompanied the application of a minor for a minor driver's license or permit may thereafter file with the department a verified written request that the license of said minor be canceled. Upon receipt of such request, the department shall cancel the license of said minor, unless the minor has already reached the age of eighteen years, and the person who signed the affidavit of liability for such minor shall be relieved from all liability imposed by section 42-2-108 (2).

(2) When such minor reaches the age of eighteen years, the person who signed the minor's affidavit of liability is relieved of all liability imposed by section 42-2-108 (2).