Sinn Fein is calling for further extensions for motorists due to delays at NCT centres.
The operator says Covid absenteeism has affected its level of testing, and many centres have little availability for February and March.
Sinn Fein Deputy Martin Kenny is calling for drivers to be given more time:
"There needs to be a move from government to ensure that people can have an extension on to the time that they have to get their cars tested so that either members of An Garda Síochána or whatever will not be giving people hassle for not having their test when it's not possible for them to get it. And that clearly would give people a bit of a break for, I'd say, probably the next six months."