Monaghan County Council has called on the government to "demand the immediate withdrawal" of a British Bill that would require a US-style visa waiver for non-Irish, EU citizens crossing the Border.
British MPs recently voted in favour of the change as part of proposed new British immigration laws.
They also voted against an amendment introduced in the House of Lords, which would have exempted Northern Ireland from the legislation.
However, the Nationalities and Borders Bill was rejected by the House of Lords last night and will return to MPs later.
At a recent County Council meeting, Seamus Coyle said the move would create huge problems for individuals and employers in Monaghan.
The Bill will require non-Irish EU citizens to apply online for pre-travel clearance before crossing the Border into the North.
Seamus Coyle says it would "undermine the Good Friday Agreement" and the Common Travel Area.