State agencies, tribes, and local governments responsible for permits or other approvals of watershed restoration projects as defined in RCW 89.08.460 may develop general permits or permits by rule to address some or all projects required by an approved watershed restoration plan, or for types of watershed restoration projects. Nothing in chapter 378, Laws of 1995 precludes local governments, state agencies, and tribes from working out other cooperative permitting agreements outside the procedures of chapter 378, Laws of 1995.