Wash. Rev. Code § 70A.15.1090
It is declared to be the policy of the state of Washington through the department of ecology to cooperate with the federal government in order to insure the coordination of the provisions of the federal and state clean air acts, and the department is authorized and directed to implement and enforce the provisions of this chapter in carrying out this policy as follows:
[ 1987 c 109 s 49; 1969 ex.s. c 168 s 45. Formerly RCW 70.94.510.]
Purpose—Short title—Construction—Rules—Severability—Captions—1987 c 109: See notes following RCW 43.21B.001.