In Victoria the 10/50 rule is allowed in a Bushfire Management Overlay (BMO), and a 10/30 rule is allowed in a Bushfire Prone Area (BPA). The 10 refers to the distance, in metres, that you can clear trees for the purposes of bushfire safety from the perimeter of your house. And the 50 refers to the clearing of shrubs and surface scrubby fuels as a function of distance from your house in metres.

Those clearance options alone do not remove all the threats that your house may face in a bushfire, but it starts to reduce the intensity of fire arrival and reduces tree strike risk.