Michael Lowry (Tipperary, Independent) | Oireachtas source

That is a huge issue when 40% of capacity is taken up with retesting. There must be some way to educate the public and ensure that they arrive with a vehicle in the condition required to pass an NCT. Mr. Walsh has said that people undertake an NCT to get a free diagnosis and retest when the repairs have been made which is a scenario that chokes the system.