If in a public charter school it becomes necessary to increase the amount of the appropriation, the charter school board, before incurring expenditures in excess of expenditures therefor, shall adopt a resolution stating the facts and the estimated amount of appropriation to meet it.

Such resolution shall be voted on at a public meeting, notice to be given in the manner provided in WAC 392-123-054. Its introduction and passage shall require the vote of a majority of all members of the charter school board.

Any person may appear at the meeting at which the appropriation resolution is to be voted on and be heard for or against the adoption thereof.

One copy of all adopted appropriation resolutions shall be filed with the superintendent of public instruction. Another copy shall be filed with the charter school's authorizer, as defined in RCW 28A.710.010. The final date for adopting appropriation resolutions extending budgets shall be the close of business on August 31st or the last business day prior to August 31st if August 31st occurs on a nonbusiness day. Each copy of all appropriation resolutions filed shall have attached a copy of the charter school's latest budget status report. The revised budget shall be in the format prescribed by the superintendent of public instruction and shall be prepared in accordance with instructions provided by the superintendent of public instruction. Any appropriation resolution adopted after the date specified in this section shall be null and void. Any appropriation resolution adopted after the current appropriation level has been exceeded shall be null and void to the extent that the current appropriation level has been exceeded.

The superintendent of public instruction's review of budget extensions shall consist of data entry and edit, review of revenues and reserved and unreserved fund balances for accuracy, appropriateness of expenditures, and determination of whether or not the budget extension is in compliance with this chapter, state statutory law, and budget instructions issued by the superintendent of public instruction.