Last edited: Jan 9, 2015 I rang today and they told me that they couldn't do a test until July. My NCT expires in late May. They then told me I could ring up at any time and ask for a cancellation. I would be using the Deansgrange Centre, but I presume I could go to another Dublin based centre either. I presume that if I have a date, although my NCT is expired, the Garda would be unlikely to push it.