The rules of track events in athletics as observed in most international athletics competitions are set by the Competition Rules of the International Association of Athletics Federations (IAAF). The most recent complete set of rules is the 2009 rules that relate only to competitions in 2009. Key rules of track events are those regarding starting, running and finishing. Current World Athletics (WA) Rules are available on WA's website Current USATF (USA) Competition Rules booklet is available on the USATF website [https://www.usatf.org/governance/rule-books. Prior USATF Competition Rules booklets are also available (2002, 2006 to 2020) [http://mastershistory.org/standards-specifications/].