Conn. Gen. Stat. § 46b-116w
Notwithstanding section 3-6c, the Department of Children and Families is authorized to enter into an agreement with a federally recognized Indian tribe or an Indian tribe recognized by the state of Connecticut located within the geographic boundaries of the state respecting the care and custody of Indian children and jurisdiction over child custody proceedings, including agreements which may provide for orderly transfer of jurisdiction, providing services to Indian families, and agreements providing for concurrent jurisdiction between the state and such tribe. Such agreements shall contain a provision allowing either party to revoke such agreement upon written notice of one hundred eighty days to the other party, and such agreement shall address the impact of such revocation on a proceeding over which a court had assumed jurisdiction at the time of revocation.
Conn. Gen. Stat. § 46b-116w