Commercial vehicle testing arrangements in Ireland are governed by European directive (EU directive 2014/45).
Article 5 of this directive sets down the test due dates for most commercial vehicles and in Ireland we have transposed this into national law via the Commercial Vehicle Roadworthiness (Vehicle Testing) (No. 2) Regulations (S.I. 347 of 2013 as amended)
A warranty on a vehicle is a consumer protection issue and should not be confused with the roadworthiness of a vehicle, which is what commercial vehicle testing is concerned with.
All commercial vehicles older than 1 year need to have a roadworthiness certificate. This is because commercial vehicles generally do more significant mileage than, for example, personal vehicles. In addition, they generally carry heavier loads and their drivers drive longer hours, which in turn pose an increased risk to road safety.
The Road Safety Authority (RSA) has responsibility for the operation and oversight of the commercial vehicle testing arrangements I have therefore forwarded the second part of this Question to the RSA for direct reply to the Deputy. I would ask the Deputy to contact my office if a response has not been received within ten days.