USA Baseball is the national governing body for organized baseball in the United States and is a member of the United States Olympic Committee and the World Baseball Softball Confederation.
The organization selects and trains the World Baseball Classic, Olympic, Premier12 and Pan American Games teams (and all other USA Baseball Professional Teams); the USA Baseball Collegiate National Team; the USA Baseball 18U, 15U and 12U National Teams; and the USA Baseball Women's National Team, all of which participate in various international competitions each year. In addition, USA Baseball selects players for the 14U, 16U and 17U National Team Development Programs.
The organization is responsible for the continued proliferation and health of the sport, and leads a number of amateur initiatives through its Sport Development department, including Play Ball and Pitch Smart. USA Baseball also presents the Golden Spikes Award annually to the top amateur baseball player in the country and is responsible for creating the USABat standard. Wikipedia