Colo. Rev. Stat. § 19-1-115.3
If a child or youth for whom the department of human services or a county department of human or social services has legal custody pursuant to the provisions of this title 19 is determined by the agency to be missing, the agency having legal custody of the child or youth shall report the disappearance immediately, and in no case later than twenty-four hours after learning of the disappearance, to the National Center for Missing and Exploited Children and to law enforcement. Law enforcement authorities shall notify the Colorado bureau of investigation and enter any relevant information into the Colorado crime information center database pursuant to section 16-2.7-103. The reporting requirements set forth for foster parents and out-of-home placement facilities in section 19-2.5-1508 apply.
C.R.S. § 19-1-115.3