Enter into agreements or other transactions with and accept grants and the cooperation of any governmental agency in furtherance of this chapter. (8) Adopt rules under chapter 34.05 RCW as necessary to carry out the purposes of this chapter. (9) Do all acts and things necessary or convenient to carry out the powers expressly granted or implied under this chapter.[2008 c 327 ?? 4; 1996 c 51 ?? 4;