AA, which on Friday said LaCaze, 22, was excluded because her Olympic A qualifying time on Wednesday was outside the Olympic qualifying period, has changed the criteria, with Australian Olympic Committee approval.
Australian athletes now have until June 22 to qualify, which means LaCaze can qualify for the 3000 metre steeplechase.
A spokesman for Athletics Australia confirmed an amendment had been made to the selection policy that allows LaCaze to be nominated for the team after a discussion between Australian Olympic Committee boss John Coates and the head of Athletics Australia.
