Section 19(2)(iii) in Tamil Nadu Urban Local Bodies (Regulation and Monitoring of Swimming Pools) Rules, 2015
(iii)There shall be no obstruction extending from the wall or the floor into the clear area of the diving portion of the pool. There shall be an unobstructed distance of 5 m above the diving board measured from the centre of the front end of the board and this clearance shall extend at least 2.5 m behind, 2.5 m to each side, and 5 m ahead of the measuring point.