An association of gas station owners is suing Washington over the state's existing hazardous substances tax, which was approved by voters in 1988.
The lawsuit, filed in King County on Tuesday, seeks to redirect the money that is collected under the current tax of 0.7 percent on oil products, pesticides and other chemicals. That money is earmarked for environmental cleanup projects.
Lawmakers this year have been weighing increasing that tax to help cities and towns control and clean up polluted stormwater.
The lawsuit, filed by the Automotive United Trades Organization and the owners of a Tukwila gas station, claims that the underlying tax is essentially a gas tax, and should be used only for highways and roads.
The Associated Press