Each educational service district shall prepare in accordance with this chapter and instructions from the superintendent of public instruction a complete general expense fund budget for each fiscal year of operation. An incomplete budget shall be considered null and void and shall not be an appropriation. The annual budget shall be prepared in the format prescribed by the superintendent of public instruction which will reflect the approved core funding formula pursuant to WAC 392-125-036, and shall receive all necessary approvals, and shall be filed with the proper officials in order to constitute an official budget and appropriation for each fiscal year. The superintendent may require a second or revised budget at any time the financial situation is deemed to warrant a revised budget.