FINA meets every year to discuss rules of swimming and to possibly change them, here some of the rules they are looking at changing.
-for races 400m, 800m or 1500m in length, changing the circle seed for prelims from 3 heats to 2 heats;
-in Backstroke, making it illegal to be submerged at the finish;
-in Breaststroke, a limit of 15m underwater off the start;
-in Breaststroke, allowing dolphin kick-outs off the start;
-in Breaststroke & Butterfly, hands must be separated when they touch the wall;