The CAA will put details on their website as and when the CAD is accepted. I think they are holding out to get ICAO approval so that it is used in ALL ICAO states. In May they already had the equipment, and indeed their own pass criteria, but would not say what it was in case it had to be changed!! If indeed they wanted it as a UK only test it could have been done a long time ago. Good if you pass as any ICAO state should accept the test results. The CAA told me that it was planned for them to accept any other ICAO states results (of their CAD test!!). I still do not think the test is appropriate for pilot testing - let it be done in the real world and those that can will and those that can't won't - simple!!