Mr. Niall Cody:

Both sides of the Border started adding the new marker to marked fuel on 1 April. Obviously, there is a changeover from the end of March to April. The fuel marker gets added at the very top of the fuel chain and it takes time for the system to wash through stock. In May, we started fuel sampling covering all aspects, including at the top end, to make sure the marker was being added at the legitimate level. It will be, but we just want to make sure.