Conn. Gen. Stat. § 45a-611: (Formerly Sec. 45-44d). Reinstatement of parent as guardian of the person of minor.

(a) Except as provided in subsection (d) of this section, any parent who has been removed as the guardian of the person of a minor may apply to the Probate Court which removed him or her for reinstatement as the guardian of the person of the minor, if in his or her opinion the factors which resulted in removal have been resolved satisfactorily.

(b) In the case of a parent who seeks reinstatement, the court shall hold a hearing following notice to the guardian, to the parent or parents and to the minor, if over twelve years of age, by first class mail not less than ten days before the date of the hearing. If the court determines that the factors which resulted in the removal of the parent have been resolved satisfactorily, the court may remove the guardian and reinstate the parent as guardian of the person of the minor, if it determines that it is in the best interests of the minor to do so. At the request of a parent, guardian, counsel or guardian ad litem representing one of the parties, filed within thirty days of the decree, the court shall make findings of fact to support its conclusions.

(c) The provisions of this section shall also apply to the reinstatement of any guardian of the person of a minor other than a parent.

(d) Notwithstanding the provisions of this section, and subject to the provisions of subsection (b) of section 45a-616a, a parent who has been removed as guardian of the person of a minor may not petition for reinstatement as guardian if a court has established a permanent guardianship for the person of the minor pursuant to section 45a-616a.