As Minister for Transport, I do not have a role in vehicle registration. That is a competence of the Office of the Revenue Commissioner.
Legal requirements govern all vehicles used on public roads in EU member states, including Ireland. A vehicle must meet a set of safety, environmental and conformity of production requirements, known as motor vehicle type-approval, before it can be registered for use. Every vehicle produced must be accompanied by a certificate of conformity, which certifies that the vehicle corresponds to the approved type. A motorised vehicle cannot be registered without this certificate of conformity and, accordingly, type-approval must be sought from an EU Type-Approval Authority.
The relevant type-approval regulation for two- and three-wheeled vehicles is Regulation (EU) 168 of 2013, which details the minimum technical standards such a vehicle is required to meet.