Ministers from both sides of the border have agreed to recognise driver disqualifications on an all-island basis.
At present, a driver disqualified in one jurisdiction can still get a licence in the other.
However, the Republic's Transport Minister, Noel Dempsey, and Stormont Environment Minister Sammy Wilson, agreed to harmonise their systems at a meeting today.
Mr Dempsey has described it as a vital step towards greater road safety.
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