Section 294.500 - Declaratory ruling by Department of Revenue as to its rules; rules(1) On petition by 10 interested taxpayers or a municipal corporation, the Department of Revenue may issue a declaratory ruling with respect to the validity or applicability to any person, municipal corporation or state of facts of any rule adopted by the department.(2) The Department of Revenue shall adopt rules prescribing the form, content and procedure for submission, consideration and disposition of petitions under subsection (1) of this section.(3) The Department of Revenue must afford interested parties a full opportunity for hearing on the subject of a petition before issuing a declaratory ruling under subsection (1) of this section.(4)(a) A declaratory ruling issued under subsection (1) of this section binds the department and all parties to the proceedings on the state of facts alleged, unless it is altered or set aside by a court.(b) A declaratory ruling is subject to review in the Oregon Tax Court in the manner provided by ORS 294.515 and is subject to the same limitations under ORS 294.515 as appeals. 1963 c.576 §34d; 2011 c. 473, § 23