; application of Act (a) Effective Date This Act shall take effect 180 days after the date of the enactment of this Act. (b) Application of Act This Act shall apply with respect to— (1) mergers that occurred less than 2 years before the date of the enactment of this Act; and (2) mergers that occur on or after the date of the enactment of this Act. (c) Attorney General In order to promote transparency in merger enforcement, the Federal Trade Commission and the Attorney General shall publish no less frequently than every 2 years a report on the numbers of their investigations and enforcement actions with respect to horizontal mergers in the preceding 2 years. This report should provide summary data on investigations and actions by level of and change in concentration, number of remaining significant competitors, and ease of entry in the relevant markets. (d) Authorization Of Appropriations (1) In general To carry out the amendments made by this Act, there is authorized to be appropriated $2,000,000 for each of fiscal years 2018 through 2022. (2) Availability of funds Funds appropriated to carry out such amendment shall remain available for a period of 2 fiscal years.