1. Short title This Act may be cited as the Investing in America: A Penny for Progress Act . 2. Double indexation of gasoline and diesel fuels tax (a) In general Paragraph (2) of section 4081(a) of the Internal Revenue Code of 1986 is amended by adding at the end the following new subparagraph: (E) Index for highway construction cost inflation and fuel efficiency (i) In general In the case of any calendar year after 2017, the 18.3 cents rate in subparagraph (A)(i), the 24.3 cents rate in subparagraph (A)(iii), and the 19.7 cents rate in subparagraph (D), shall each be increased by an amount equal to— (I) such dollar amount, multiplied by (II) the double indexation for the calendar year. Any increase determined under this subparagraph shall be rounded to the nearest tenth of a cent. (ii) Exception for fuel used in aviation The adjustment under clause (i) shall not apply with respect to the rate of tax under subparagraph (A)(iii) for fuel referred to in subparagraph (C). (iii) Special rules to stabilize rates (I) If an adjustment of rates under clause (i) for a calendar year would result in rates in subparagraphs (A)(i), (A)(iii), and (D) in effect for the calendar year greater than 1.5 cents more than the rates in effect under such subparagraphs for the preceding calendar year— (aa) the rates in subparagraphs (A)(i), (A)(iii), and (D) for the calendar year shall be the rates in effect under such subparagraphs for the preceding calendar year plus 1.5 cents, (bb) any adjustment of rates that would have occurred under clause (i) if item (aa) were not in effect shall be applied under that clause— (AA) in the succeeding calendar year or years after the rate is established under clause (i) for that year, and (BB) until the cumulative adjustment of rates equals the adjustment that would have applied under clause (i) if item (aa) were not in effect, and (cc) an adjustment of rates under item (bb) remains subject to item (aa). (II) If an adjustment of rates under clause (i) for a calendar year would result in rates in