Provides that, beginning August 1, 2007, every electricity generating plant in the state of Washington using coal shall begin reducing or permanently offsetting its greenhouse gas emissions by twenty-five percent per year.

Provides that, by January 1, 2008, every electricity generating plant in the state of Washington using coal shall permanently offset its greenhouse gas emissions by one hundred percent, or completely phase out the use of coal for electricity.

Provides that no electric utility in the state of Washington shall enter into new long-term contracts to purchase electricity using coal from within or from outside of the state of Washington.