The wait time for an NCT test has passed 5 months in 31 centres across the country.
Applus, the company who run the service, says 50 new vehicle inspectors were recruited in December, which they say will help reduce demand.
The longest wait time is in Drogheda, where drivers can't get an appointment before the 31st of August.
In Waterford, the next available dates are in May.
Junior Transport Minister Jack Chambers expects wait times to return to normal levels by this summer.
"I think the focus now has t0 be on reducing the wait times and ensuring that we get back to a more regular wait time, to an average of 12 days by the end of May," he said.
Minister Chambers added that for people who are due to book an NCT soon, there is a priority waiting list, as over 3,500 cancellations happen each week.
For more Waterford news and sport, click here.
