The origins of scuba diving certifications trace back to the invention of scuba diving equipment by Jacques Cousteau. When Cousteau and Emile Gagnan developed the Aqua-Lung in the 1940s, it revolutionized underwater exploration. However, it quickly became apparent that proper training was necessary to ensure divers could use the equipment safely. This led to the establishment of the first certification program by the Confédération Mondiale des Activités Subaquatiques (CMAS), founded in 1959. Over time, other organizations and dive clubs emerged, including the British Sub-Aqua Club (BSAC) and more commercially oriented agencies like the National Association of Underwater Instructors (NAUI) and the Professional Association of Diving Instructors (PADI).