Washington’s latest revision of its gas tax will take effect Tuesday, costing an additional six cents per gallon, bringing the total tax to 55.4 cents per gallon.

The tax will rise by 6 cents a gallon, the first increase in nine years for the primary revenue source sustaining Washington’s transportation system.

Keep reading to learn more about Washington's gas tax increase and how much you can expect to pay at the pump. Why the gas tax is going into effect in WA on July 1. What they're s