Thanks.
Hi Terran,
Requirements depend on the BAL rating of your land. Ours is Low so we have no requirements for modification. I would assume others already built may not require this because of their rating. There is more info here: http://www.rfs.nsw.gov.au/plan-and-prep ... and-design
Further to the fab info from raskar, I didn't need one due to my BAL rating, but chose to install a security screen door because I wanted one (I have a 3-panes-of-glass boring front door lol! It was just the size I wanted - didn't matter to me what it looked like so 'hiding' it behind a security screen is probably doing the neighbourhood a favour ).
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