The 2017 U.S. tax reform bill signed into law on December 22, 2017 is based on a bill released by the Conference Committee on December 15, 2017.
The Conference Committee included representatives from the Senate and the House, and their bill reflected a compromise between the version of the bill passed by the Senate on December 2 and the version passed by the House on November 16. The Conference Committee’s bill was further modified to remove certain provisions which violated Senate procedural rules, before a final bill was passed by the Senate and the House on December 20 and signed into law on December 22. The final bill signed into law on December 22, as well as the Conference Committee bill and related official documents, can be found at the following links: