Establishing tax exemptions for unleaded aircraft fuel.

This bill removes excise taxes on unleaded aircraft fuel (defined as 100 octane fuel without lead) for both businesses and consumers who use it. It directly affects aircraft fuel dealers, distributors, and aviation operators (including air carriers and local service commuters) who purchase or use this specific fuel. Key provisions amend tax codes to exempt unleaded aircraft fuel from excise taxes under RCW 82.42.030 and create new exemptions in chapters 82.08 and 82.12. The tax exemptions expire on January 1, 2032, and apply only to commercially available unleaded fuel meeting the defined standard.