(1) In accordance with the applicable provisions of ORS chapter 183, the Water Resources Commission shall adopt rules and standards to perform the functions vested by law in the commission.
(2) Except as provided in ORS 183.335 (5), the commission shall cause a public hearing to be held on any proposed rule or standard before its adoption. The hearing may be before the commission, any designated member of the commission or any person designated by and acting for the commission.