After a board of arbitration has been appointed, a submission in writing must be executed as provided in section 32-29.3-06, but the submission must provide for the entry of judgment upon the award by the district court of the county in which the improvement, or some part thereof, involved in the contract is located. The county must be specified in the submission. The submission must be executed by the director. After submission of the arbitration agreement, the arbitration must proceed in accordance with the provisions of chapter 32-29.3, unless a party submits the dispute to arbitration in accordance with the construction industry arbitration rules of the American arbitration association. If the rules of the American arbitration association conflict with North Dakota law, North Dakota law governs. The decision of the arbitrators must be in writing and must state the basis for the decision.