Senate Bill 5898 amends existing tax statutes (RCW 82.21.030, 82.23B.020, 82.23A.020 and RCW 82.42.090) to change where revenues from various taxes on aircraft fuel are deposited. Under the bill, proceeds from the volumetric petroleum tax, the oil spill response and oil spill administration taxes, and the possession tax when imposed on aircraft fuel are directed to the aeronautics account. The bill also states that the aircraft fuel excise tax collected by the director must be transmitted to the state treasurer and credited to the aeronautics account, and that funds in that account may be spent only after appropriation and only for aviation-related purposes. Receipts from consumer or user retail sales or use tax on aircraft fuel remain credited to the state general fund. These are amendments to existing law that reallocate tax revenues and add or clarify procedural rules. The bill includes a quarterly rule for imposing the aircraft fuel excise tax based on the aeronautics account’s most recent quarterly balance (tax is imposed each calendar quarter unless the prior-quarter conditions and balance thresholds of $30,000,000 or $15,000,000 apply). It also preserves other procedural provisions referenced in the amended sections, including tax due dates for marine and bulk oil terminal operators, OFM responsibilities to determine and notify account balances, and a provision that the first $200,000 of oil spill administration tax receipts is deposited into the military department active state service account. The bill does not, in the provided text, change criminal penalties. The provided material is incomplete. The definition of “aircraft fuel” in RCW 82.42.010, the full text and any additional amendments to RCW 82.42.090, and the remainder of RCW 82.23A.020(4) are not included here, so any details in those missing provisions cannot be summarized.

If enacted, the bill channels most taxes levied specifically on aircraft fuel into a dedicated aeronautics account, creating a clearer, aviation-only revenue stream that can only be spent for aviation purposes and only after the Legislature appropriates it. An aircraft fuel excise tax would be collected each calendar quarter unless the aeronautics account balance exceeds set thresholds that allow skipping a quarter, which means funding for aviation could rise when balances are low but be paused automatically when balances are high. Retail sales or use taxes paid by aircraft fuel consumers remain part of the state general fund, not the aeronautics account. The groups most affected are aircraft operators and other aviation stakeholders who are likely to see a new, more predictable source of aviation funding but whose access to that money still depends on future appropriations; marine and bulk oil terminal operators who collect these taxes face continued collection and liability responsibilities; and state agencies (Department of Revenue, Office of Financial Management, and Department of Ecology) that must track, transmit, and be notified about account balances. The Military Department continues to receive the first $200,000 of oil spill administration tax receipts. Key implementation details are unclear from the provided text—most importantly the statutory definition of “aircraft fuel,” who the “director” is for collections, and exactly how the “most recent quarterly balance” is calculated—so the timing and size of actual transfers and any operational changes remain somewhat uncertain.