member promoting the race and to the swimmer so offending. (vii) No swimmer shall be permitted to use or wear any device that may aid speed, buoyancy or endurance during a competition (webbed gloves, fins, etc.). Goggles may be worn. (viii) Any swimmer not participating in a race shall be disqualified, if they enter the water, in which an event is being conducted before the preceding team-mate touches the wall.
(ix) There shall be four swimmers in each relay team. (x) In relay events, the team of swimmers whose feet lose touch with the starting platform before the preceding team-mate touches the wall, shall be disqualified. (xi) Any relay team shall be disqualified from a race if a team member, other than the swimmer supposed to swim that length, enters the water when the race is being conducted, before swimmers of all the teams have finished the race being conducted. (xii) The member of a relay team and their order of competing must be nominated before the race.
Any relay team member may compete in the race only once. The composition of a relay team may be changed between the heats and finals of the event, provided that it is made up from the list of swimmers properly entered by a member of that event. Failure to swim in the order listed, will result in disqualification. Substitutions may be made only in the case of a documented medical emergency.
(xiii) Any swimmer having finished his race, or his distance in a relay event, must leave the pool as soon as possible without obstructing any other swimmer who has not yet finished his race. Otherwise the swimmer committing the fault or his relay team shall be disqualified. (xiv) Should a foul endanger the chances of success of a swimmer, the referees shall have the power to allow him to compete in the next heat or, should the foul occur in a final event or in the last heat, he/she may order it to re-swim. (xv) No pace-making shall be permitted, nor may any device be used which has that effect.