Official Text and Analysis.

Excludes aircraft fuel purchased by air carriers domiciled in Washington from the hazardous substance tiered tax rates. The tiered tax rates start at 0.9 percent and change to 0.7 percent, and then 0.21 percent, based on specified thresholds with adjustments and annual tax collections. Sets the hazardous substance tax rate for aircraft fuel purchased by air carriers domiciled in Washington at 0.7 percent until annual tax collections reach a 170 million dollar threshold with adjustments. After the threshold is met, the rate changes to 0.21 percent for the remaining part of the fiscal year.