Gaelgoirs are claiming that restricted access to Irish in public life has held back the development of the language.
The Official Languages Bill, which is in its final stages in the Oireachtas, will make it a legal obligation for public services to be provided "as Gaeilge" when requested.
But President of Conradh na Gaeilge, Shea MacShiurdain, has expressed little faith in the system.
He says the plan is "incomplete" as it does not extend to court cases or school textbooks.
He stated: "Despite its Constitutional status, Irish is still being treated as a second-class language."