Tenn. Code § 65-28-109
Nothing in §§ 65-28-104 - 65-28-111 shall be deemed to confer upon the commission any additional power and jurisdiction to supervise or regulate the rates, services, franchises or other matters pertaining to pipeline systems or transportation of gas except with respect to the enforcement of federal safety standards prescribed by the secretary of the United States department of transportation and such additions and amendments as ordered by the commission; nor shall anything in §§ 65-28-104 - 65-28-111 be deemed to confer upon the commission any power to adopt or continue in force any standards for pipeline systems or transportation of gas, including carbon dioxide transported via interstate pipeline, subject to the jurisdiction of the federal power commission as prohibited in the Natural Gas Pipeline Safety Act ( 49 U.S.C. § 60101 et seq.).
T.C.A. § 65-28-109