Baseball in 2015. Rob Manfred, the Commissioner of Baseball, instituted rule changes to MLB before the start of the 2015 MLB season to address the pace of the game, including having batters remain in the batter's box and the installation of time clocks to limit the time spent around commercial breaks. See also Baseball law, for civil law in the United States pertaining to baseball and its institutions Cheating in baseball The Official Professional Baseball Rules Book, for Major League Baseball's business rules References External links Major League Baseball: Official Baseball Rules NCAA: 2006 NCAA Baseball Rules (pdf) Evolution of 19th Century Baseball Rules