It is understood the new Regional Support Unit (RSU) for the capital will be tasked with, among other things, providing a visible armed presence at both facilities.
It means Garda members wearing Swat-style uniforms and carrying high-velocity weapons will be on duty in and around the airport and port campuses and inside terminal buildings.
There is currently no armed presence at either the airport or port in Dublin. This has been a cause of growing unease in security and political circles.
The Special Detective Unit and Emergency Response Unit (ERU) have always been the first line of response in the event of any major incident, but neither unit has a presence in the port or airport.