The Road Safety Authority driving testers have voted in favour of going on strike.
It comes after members of the Fórsa Trade Union say their employer has failed to make sure testers are covered by the State Claims Agency while working.
If the strike goes ahead, it could mean test wait times will increase.
It's understood the matter has been referred to the Workplace Relations Committee.
Another concern for driving testers is the insurance verification systems which leaves testers at risk when carrying out their work.
Currently, there is no way to ensure whether vehicles being used for driving tests are fully insured.
Fórsa official Ruairí Creaney said: “The ballot result demonstrates that members want this issue resolved once and for all. We will raise their concerns at the WRC later this month and from there we will determine the next steps.”
He continued: “What’s for certain is that the current situation cannot continue. Driver testers cannot be expected to get into vehicles to do their jobs when they have no clarity on whether the vehicle is uninsured. We need a straightforward guarantee of indemnity for driver testers, and a proper insurance verification system."
