(a) Any dispute as to the eligibility of personnel to vote in an election, or the agency to conduct the election required by § 10-153b, shall be submitted to a board of arbitration for a binding decision with respect thereto. If there are two or more organizations seeking to represent employees, each may name an arbitrator within five days after receipt of a request for arbitration made in writing by any party to the dispute. Such arbitrators shall select an additional impartial member thereof within five days after the arbitrators have been named by the parties. The impartial agency selected to conduct the election shall decide all procedural matters relating to such election and shall conduct such election fairly. Each organization shall have, during the election process, equal access to school mail boxes and facilities.

(b) A local or regional board of education or the exclusive representative of a teachers’ or administrators’ unit may file a unit clarification petition with the Commissioner of Education in order to clarify questions concerning the appropriate composition of an existing unit if no question concerning representation is pending. Upon receipt of a properly filed petition, the commissioner shall render a final decision on the petition pursuant to chapter 54.