Conn. Gen. Stat. § 12-372: Authority to compromise or arbitrate dispute as to decedent's domicile.

When the Commissioner of Revenue Services claims that a decedent was domiciled in this state at the time of his death and the taxing authorities of another state or states make a like claim on behalf of their state or states, the Commissioner of Revenue Services may make a written agreement with the other taxing authorities and with the executor or administrator (1) to compromise the controversy or (2) to submit the controversy to the decision of a board consisting of one or any uneven number of arbitrators to be selected by the parties to the agreement. The executor or administrator is authorized to make any such agreement. As used in this section and in sections 12-373 and 12-374, “state” means any state or territory or any possession of the United States or the District of Columbia.