I don’t know what legal power it will have, but to cover this our Strata Manager has had prepared, and has asked her Strata Schemes to pass, a bylaw to the effect that once Strata has installed the locks or has had any existing locks tested, (so that Strata are certain to have met the requirements), it becomes the individual owners responsibility to maintain and keep them. And also the individual owners liability in the event of accident (or of a fine for non compliance) after that.