The secretary may require that any contract to which the commission is a party be submitted to the secretary for concurrence prior to the commission entering into the contract. If the secretary requires the submission of a contract and does not concur in that contract, the secretary shall hold a public hearing within 14 days of the initial decision not to concur. In the notice of the hearing, the secretary shall present a written explanation of his or her decision. The secretary shall make a final decision on whether or not to concur in the contract within 30 days of the hearing. The contract may not be executed from the time that the secretary makes the initial decision not to concur to the time of the final decision.