What is the length and width of an Olympic-size swimming pool to qualify for FINA?

An Olympic-size swimming pool conforms to regulated dimensions, large enough for international competition. This type of swimming pool is used in the Olympic games, where the course is 50 metres (164.0 ft) in length, typically referred to as ''long course'', distinguishing it from ''short course'' which applies to competitions in pools that are 25 metres (82.0 ft). If touch panels (automatic electronic timing device) are used in competition, then the distance between touch panels should be either 25 or 50 metres to qualify for FINA.

This means that Olympic pools are generally oversized, to accommodate touch panels used in competition. The width of the pool is 25.0 metres. There must be two spaces 2.5 m wide outside lane 1 and 8 (in effect, two empty lanes). FINA or Federation internationale de natation is the federation recognised by the international Olympic committee (IOC) for administering competition in water sports. At FINA's 2009 congress, rules were approved for 10-lane courses for competition.