What letter must a newly qualified driver display in Northern Ireland for one year?

In Northern Ireland, newly qualified drivers have a slightly different system than in the rest of the UK. While learners across the UK display 'L' plates, new drivers in Northern Ireland must display 'R' plates for a period of one year after passing their driving test. The 'R' stands for "Restricted." This restriction means they are not allowed to exceed a speed of 45 mph, even if the road's speed limit is higher. This measure is in place to help new drivers gain experience and confidence on the roads at a slightly slower pace, reducing the risk of accidents during their initial year of driving. It's a unique aspect of Northern Irish driving regulations, aimed at improving road safety for everyone. So, while 'L' plates are for learners, and other letters might seem plausible, 'R' is the specific plate for newly qualified drivers in Northern Ireland facing certain restrictions.