Montana Title 40. Family Law § 40-4-218. Judicial supervision

(1) Except as otherwise agreed by the parties in writing at the time of the custody decree, the custodian may determine the child's upbringing, including the child's education, health care, and religious training, unless the court after hearing finds, upon motion by the noncustodial parent, that in the absence of a specific limitation of the custodian's authority, the child's physical health would be endangered or the child's emotional development significantly impaired.

(2) If both parents or all contestants agree to the order or if the court finds that in the absence of the order the child's physical health would be endangered or the child's emotional development significantly impaired, the court may order supervised visitation by the noncustodial parent. The court may not order the department of public health and human services to supervise the visitation.