Notwithstanding any other provisions of the code to the contrary, the county board shall not be required to submit its budget for approval by the state superintendent as provided by §18-9B-6 and § 18-9B-7 of this code, until the 10th day next following the state superintendent‘s transmittal of final state aid computations following the adoption of the state budget, but no later than May 30: Provided, That, in any year in which the state budget is not adopted on or before May 1, the state superintendent may require the county board to adopt a preliminary budget and to submit it to the state superintendent no later than May 30, and when final computations of state aid are transmitted to the county board, the county board shall make such adjustments as are necessary prior to final adoption of the budget.