British Underwater Sports Association (BUSA) is the British affiliate of the Sports Committee of Confédération Mondiale des Activités Subaquatiques (CMAS). It was created in 1997 to fill the vacancy on the CMAS Sport Committee for the United Kingdom caused by the expulsion of the British Sub-Aqua Club from CMAS in order to ensure ongoing access to international competition offered by CMAS for British underwater sports teams. Its members include the British Finswimming Association, British Octopush Association and British Spearfishing Association.