; and (B) the portion of a natural gas pipeline or electric transmission facility that is located at an international boundary of the United States; (2) the term modification includes a reversal of flow direction, change in ownership, change in flow volume, change in product delivered, addition or removal of an interconnection, or an adjustment to regulate flow (such as a reduction or increase in the number of pump or compressor stations or valves); (3) the term natural gas has the meaning given that term in section 2 of the Natural Gas Act ( 15 U.S.C. 717a ); (4) the term oil means petroleum or a petroleum product; (5) the terms Electric Reliability Organization and regional entity have the meanings given those terms in section 215 of the Federal Power Act ( 16 U.S.C. 824o ); (6) the terms Independent System Operator and Regional Transmission Organization have the meanings given those terms in section 3 of the Federal Power Act ( 16 U.S.C. 796 ); and (7) the term appropriate Federal agencies in subsection (a)(2)(A) means the Secretary of Defense, the Attorney General, the Secretary of the Interior, the Secretary of Commerce, the Secretary of Transportation, the Secretary of Energy, the Secretary of Homeland Security, the Administrator of the Environmental Protection Agency, and, for applications concerning the border with Mexico, the United States Commissioner of the International Boundary and Water Commission.