or an administrative action for violation of this Act, no State attorney general, or official or agency of a State, may bring an action under this section during the pendency of that action against any defendant named in the complaint of the Federal Trade Commission or the Federal Energy Regulatory Commission for any violation of this Act alleged in the complaint. (d) Rules of construction (1) Civil action For purposes of bringing any civil action under subsection (a), nothing in this section shall be construed to prevent the attorney general of a State from exercising the powers conferred on the attorney general by the laws of such State to conduct investigations, administer oaths or affirmations, or compel the attendance of witnesses or the production of documentary and other evidence. (2) Enforcement of State law Nothing in this section shall be construed to prohibit an authorized State official from proceeding in State court to enforce a civil or criminal statute of such State. 6. Effect on other laws (a) Other authority of Federal Trade Commission Nothing in this Act shall be construed to limit or affect in any way the Federal Trade Commission’s authority to bring enforcement actions or take any other measure under the Federal Trade Commission Act ( 15 U.S.C. 41 et seq. ) or any other provision of law. (b) State law Nothing in this Act preempts any State law. 7. Definitions In this Act: (1) Natural gas The term natural gas has the meaning given that term in section 2 of the Natural Gas Act ( 15 U.S.C. 717a ). (2) Utility company The term utility company means a gas utility company or a public-utility company, as such terms are defined in section 1262(7) of the Public Utility Holding Company Act of 2005 ( 42 U.S.C. 16451 ).