2018 Washington Initiative 1631

The Washington Carbon Emissions Fee and Revenue Allocation Initiative, also known as Initiative 1631 or the Protect Washington Act was a ballot initiative that appeared on ballots in the State of Washington in the November 2018 election. The initiative proposed to reduce pollution by levying a fee on greenhouse gas emissions generated within the state of Washington, and using that revenue to support air quality and energy projects, as well as water quality and forest health initiatives. The measure failed with 56.3% of voters rejecting it. As of 2018, more had been spent in campaigning for and against the initiative than on any other ballot measure in Washington history.