The Association of Garda Sergeants and Inspectors has said that members will be marching in Saturday's anti-austerity march organised by the Irish Congress of Trade Unions.
However, a spokesperson for the Garda Representative Association said its executive had decided yesterday not to take part in Saturday's march.
AGSI General Secretary John Redmond said he expected several hundred members to join them in Dublin.
They will march with other members of the Frontline Alliance of public sector workers, including nurses and fire personnel, who have a 24/7 liability.
These groups have argued that they will be hit disproportionately by Government plans to cut allowances and premium payments, as a significant portion of their income is made up of such payments.
Both garda representative bodies have refused to participate in talks on securing an additional €1 billion in savings from the public sector pay and pensions bill.
However, Mr Redmond stressed that the AGSI would not be taking part in any blue flu.