The FAI has been fined €20,000 by UEFA after the women's team sang a song that referenced the IRA.
It happened while they were celebrating their World Cup play-off victory over Scotland at Hampden Park in October.
European football's governing body ruled it was a "violation of the basic rules of decent conduct".
The FAI has since accepted the fine, and says players and staff have been and will continue to be reminded of their responsibilities.