The department shall not intervene in any regulatory proceeding before the Washington utilities and transportation commission or proceedings of utilities not regulated by the commission. Nothing in this chapter abrogates or diminishes the functions, powers, or duties of the energy facility site evaluation council pursuant to chapter 80.50
RCW, the utilities and transportation commission pursuant to Title 80
RCW, or other state or local agencies established by law.
The department shall avoid duplication of activity with other state agencies and officers and other persons.