Each agency shall provide by rule for the filing and prompt disposition of petitions for declaratory rulings as to the applicability of any rule or order of the agency. A declaratory
ruling, or refusal to issue such ruling, shall be subject to a judicial review in the manner provided for review of decisions in individual proceedings as provided in Sections 317 through 323 of this title. Laws 1963, c. 371, § 7; Laws 1987, c. 207, § 18.