Concerning the distribution of aircraft fuel tax revenue.

SB 5989 changes how Washington State distributes revenue from aircraft fuel taxes. Starting July 2026, 0.5% of this tax (increasing to 1% after 2027) will fund the aeronautics account for aviation projects, while the remaining 6.5% minus that amount goes to the state general fund. The bill requires the Department of Transportation's aviation division to track and annually report on airport projects funded through this account, including state grants, federal matching funds, and local contributions. These reports must detail each project's description, funding sources, and outcomes for the legislature. The law takes effect July 1, 2026, and mandates ongoing transparency about how these funds support airport infrastructure.