((a)) ** Consultation with Chairman of Federal Trade Commission, Attorney General, and other agencies deemed appropriate by Secretary** The Secretary of Energy, in consultation with the Chairman of the Federal Trade Commission and the Attorney General and other agencies as the Secretary deems appropriate, shall conduct a study of the extent to which producers, refiners, and other suppliers of motor fuel subsidize the sale of such motor fuel at retail or wholesale with profits obtained from other operations.

((b)) ** Scope** Such study shall examine—

((1)) the role of vertically integrated operations in facilitating subsidization of sales of motor fuel at wholesale or retail;

((2)) the extent to which such subsidization is predatory and presents a threat to competition;

((3)) the profitability of various segments of the petroleum industry;

((4)) the impact of prohibiting such subsidization on the competitive viability of various segments of the petroleum industry, on prices of motor fuel to consumers and on the health and structure of the petroleum industry as a whole; and

((5)) such other matters as the Secretary considers appropriate.

((c)) ** Notice to interested parties and opportunity to present written and oral data, views and arguments** In conducting the study required by this section, the Secretary shall give appropriate notice and afford interested persons an opportunity to present written and oral data, views and arguments concerning such study.

((d)) ** Report to Congress; contents and time for submission; Presidential promulgation of rules establishing interim measures; submission date and duration of interim measures; Congressional approval of interim measures**

((1)) The Secretary shall report the results of the study required by this section, together with such recommendations for legislative action and such statistical evidence as he deems appropriate to the Congress on or before the expiration of the eighteenth month after .

((2)) If the President determines that interim measures are necessary and appropriate to maintain the competitive viability of the marketing sector of the petroleum industry during Congressional consideration of the recommendations contained in the report submitted under paragraph (1), he shall prescribe, by rule, in accordance with the procedures set forth in such interim measures.

((3)) No interim measure proposed by the President under this section may be submitted after , and the effect of such measure if approved by the Congress under paragraph (4) may not extend beyond 18 months after such Congressional approval.

((4)) Such interim measure shall not take effect unless approved by both Houses of Congress as if it were a contingency plan under : , That the 60-day period referred to in such section shall be extended to 90 days for purposes of this section.

((e)) ** Authorization of appropriations** There are authorized to be appropriated such sums as may be necessary to carry out the provisions of this section.