Tenn. Code § 65-2-104
On the petition of any interested person, the commission may issue a declaratory ruling with respect to the applicability to any person, property, or state of facts of any rule or statute enforceable by it or with respect to the meaning and scope of any order of the commission. A declaratory ruling, if issued after argument and stated to be binding, is binding between the commission and the petitioner on the state of facts alleged in the petition, unless it is altered or set aside by a court in a proper proceeding. Such rulings are subject to review in the chancery court of Davidson County in the manner provided in this chapter for the review of decisions in contested cases. The commission shall prescribe by rule the form for such petitions and the procedure for their submission, consideration, and disposition.
T.C.A. § 65-2-104