Under C.R.S. 14-10-131, a Colorado domestic relations court shall not modify decision-making responsibility absent a change in circumstances making the modification necessary to serve the best interests of the child. The standard for modifying decision-making responsibility is similar to modifying the majority parent - the established allocation of decision-making responsibility should be retained unless:
- The parties agree to the modification,
- The child has been integrated into the requesting party's family with the consent of the other party, and the integration warrants the change,
- There was a modification of parenting time which justifies the change,
- One party has consistently allowed the other to make unilateral decisions for the child, or
- The child is endangered by the current allocation of decision-making responsibility, and the advantage of changing residence outweighs any harm such a change would cause.