Rt Hon JACINDA ARDERN: Actually, much of the work in that area is being developed at an international level, and I have received copies of advice provided to the Minister of Transport around developments of that regime. As you can imagine, as an international community, we're looking for a recognisable system that acknowledges, no matter which border you're crossing, those vaccines that are considered to be sufficient to move and travel safely. So New Zealand is keeping in close touch with the international community on that.