The World Boxing Organisation issued the deadline this morning in a notice to Fury ordering him to demonstrate why his title "should not be vacated due to inactivity, breach of contract and performance enhancing drugs and stimulants."
RNZ reports Fury dethroned Wladimir Klitschko as IBF, WBA and WBO world champion by beating the Ukrainian on points last November in Germany, but has since cancelled the rematch twice for medical reasons.
Fury also faces a hearing into a charge for an alleged doping violation.
