Mr. Michael McGrail:

If there was to be a hard Brexit, the United Kingdom would becomed a third country and both the air traffic management and air safety regulations that govern not only the United Kingdom but also Ireland and the rest of Europe would fall away. There would be immediate practical issues from midnight on 29 March. Having said that, we know that the Department is working on practical solutions and looking at a number of scenarios. The IAA is working closely with it to see how these scenarios would work out. However, neither the IAA nor the Government can control this. It is very much up to the European Union and the United Kingdom.