In the world, AOW is autonomous up to 130 feet, CMAS** can also be autonomous up to 130 feet. But in France, CMAS** is autonomous up to 66 feet (20 meters) and he is supervised up to 130 feet (40 meters), AOW is supervised up to 66 feet with "nationalist" dive shops or he is autonomous up to 66 feet and supervised up to 130 feet with "americanophil" dive shops.