Major League Baseball Umpires Association

The Major League Baseball Umpires Association (MLBUA) is an organization of Major League Baseball (MLB) umpires. It was certified by the National Labor Relations Board on February 24, 2000, as the World Umpires Association (WUA) as a bargaining agent. It took over as the bargaining agent for MLB umpires after the 2000 MLB season, replacing the Major League Umpires Association (MLUA), which dated back to 1970, and has since been responsible for defending their personnel since. On July 17, 2018, it rebranded itself as the Major League Baseball Umpires Association.