FIFA
The Fédération Internationale de Football Association (FIFA ; French for 'International Federation of Association Football') is an organization which describes itself as an international governing body of association football, fútsal, beach soccer, and eFootball. FIFA is responsible for the organization of football's major international tournaments, notably the World Cup which commenced in 1930 and the Women's World Cup which commenced in 1991.
International Football Association Board
The International Football Association Board (IFAB) is the body that determines the Laws of the Game of association football. IFAB was founded in 1886 to agree standardised Laws for international competition, and has since acted as the "guardian" of the internationally used Laws; since its establishment in 1904 FIFA, the sport's top governing body, has recognised IFAB's jurisdiction over the Laws. IFAB is known to take a highly conservative attitude regarding changes to the Laws of the Game.