Pursuant to provisions of RCW 28A.525.168, the state funding assistance percentage used for the allocation of state moneys shall be the highest amount prevailing at the time of:

(1) Passage of bonds and/or levies by the voters of the school district to provide the local share required for state funding assistance;

(2) The superintendent of public instruction project approval; or

(3) Superintendent of public instruction approval to bid.

In the event that a district is otherwise eligible to receive approval to bid one or more projects but a lack of state funding assistance precludes the issuance of such approval(s), the district shall retain the higher state funding assistance percentage as provided for in this section for such approval(s). This provision shall apply to all projects having received project approval by the state board of education after September 1, 1997, or by the superintendent of public instruction after June 6, 2006.