We don't have a private plate system here in Ireland, your only option is that you can pick the number that comes at the end of the registration when you buy a new car, or import a second hand car. This used to be a reasonable €300, but it was hiked to €1000, effectively killing the plate sales. Our system uses a Year - County - number Sequence layout. YY - AC - 12345 (format changes this year means we now use (131 - LK -12345 for the first six months and 132 - LK - 12345 for cars reg'd in the second half of the year. ) My Trabi was built in 1987, and imported into Co Clare (hence the CE) Later plates require the blue strip on the left with the Euro logo (or in the case of Japanese imports with smaller recesses, the top left corner) with IRL. This replaces the stick-on individual badges (like the DDR one above) The county name (in Irish) across the top is another newer baffling requirement.