Adds requirements that apply to the decision by the department of ecology to grant or deny a water quality certification under the federal clean water act.

Requires the department to adopt rules pertaining to: (1) Water quality certifications under the federal clean water act; and

(2) Certain prepared statements and other environmental documents that may not analyze probable adverse environmental impacts that are based solely on impacts from activities that are not within the jurisdiction of the state to regulate, including impacts based on the end use of a product that occurs outside of state borders.