<P> The Extreme Heat Policy is a rule pertaining to the Australian Open (tennis). It was introduced in 1998 after consultation with a number of tennis players . </P> <P> Following severe criticism of the handling of the 2014 Australian Open, organisers increased the temperature threshold from the 2003 level of 35 to 40 ° C (95 to 104 ° F) and increased the wet - bulb globe temperature (WBGT) threshold from the 2003 level of 28 to 32.5 ° C (82 to 91 ° F) to allow for more continuous play and fewer stoppages in the future . </P>

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