of Senate elections. . (b) Conforming amendment The table of chapters of the Internal Revenue Code of 1986 is amended by inserting after the item relating to chapter 36 the following: Chapter 37—Tax on payments pursuant to certain government contracts . (c) Effective date The amendments made by this section shall apply to contracts entered into after the date of the enactment of this Act. V Effective date 2151. Effective date Except as otherwise provided for in this subtitle, this subtitle and the amendments made by this subtitle shall take effect on January 1, 2019. III Redistricting 3001. Short title This title may be cited as the Redistricting Reform Act . 3002. Finding of Constitutional authority Congress finds that it has the authority to establish the terms and conditions States must follow in carrying out Congressional redistricting after an apportionment of Members of the House of Representatives because— (1) the authority granted to Congress under article I, section 4 of the Constitution of the United States gives Congress the power to enact laws governing the time, place, and manner of elections for Members of the House of Representatives