Ms CATHERINE KING (Ballarat) (14:59): My question is to the Minister representing the Minister for Infrastructure, Transport and Regional Development. Does the minister support the creation of electronic vaccination certificates which passengers will need to fly within Australia and overseas? The SPEAKER: The Leader of the House on a point of order. Mr Porter: Not every issue that might end up with some relationship to an aeroplane should be able to be answered by the particular minister in question. I think that there are clearly other ministers, and predominantly, primarily and substantively that is a health issue. Opposition members interjecting— The SPEAKER: Members on my left, particularly the member for Solomon, never help when I'm hearing points of order. If they're not convinced about never helping me, I hope they're convinced they're not helping the Manager of Opposition Business. Mr Burke: On the point of order: this question asks the minister who, as far as the House is concerned, is responsible for answering questions on aviation about the rules as to whether people are allowed to fly. Now, this is not a long bow in terms of responsibility. This is about whether people get to fly, and he's meant to be able to answer questions on aviation policy. There would be a whole series of dixers that are out of order routinely if the aviation minister can't tell us an answer on the rules about whether or not people are allowed to fly. The SPEAKER: The Leader of the House on the point of order. Mr Porter: I understand the point about rules, but those rules either would emanate from state based public health acts— Opposition members interjecting— The SPEAKER: This is not a debate. Mr Porter: or the Commonwealth Biosecurity Act, which means that they would necessarily be a question directed to the health minister; or, alternatively, would emanate from workplace relations law, in which case it would be another minister entirely. The SPEAKER: I'll just go to rule on this question, without going through the Practice again in great detail. I take the points each are making, but I do think ministers have got, as the Practice points out, the ability to refer questions to other ministers if, in their opinion, the matter's more of a responsibility for other ministers. That principle is there. It doesn't mean the questions can't be asked, but I think on this occasion the point the Leader of the House is making has some validity to it because it wouldn't be something a minister responsible for aviation would make on their own; it would be something that would be enacted as a result of decisions of other ministries.