Two NCT Centres in Donegal have some of the lowest pass rates nationally.
The centre in Derrybeg has the lowest pass rate in the country at just under 39% while Letterkenny has a rate of 45.6%.
NCT centres in Dublin, Limerick and Laois have the highest pass rates.
Dave Humphreys is the road test editor with completecar.ie, he says road conditions may be a factor:
