An investigation by the Coimisinéir Teanga has revealed that the Department of Education has no Irish-language version of syllabuses available for 27 subjects on the Junior and Leaving Certificate courses.
The investigation was one of ten highlighted in An Coimisinéir's annual report, launched today.
The report revealed that legislation aimed at protecting or promoting Irish in public affairs was also breached by the Department of Social and Family Affairs, An Garda Síochána, the Health Service Executive and the State Examinations Commission, among other State bodies.
One investigation was discontinued, however, when access to files from the Department of Justice was refused.
The investigation concerned compliance with a statutory requirement that a judge assigned to a Gaeltacht area have sufficient Irish so as not to require an interpreter in court.
600 complaints were made to the the Coimisnéir Teanga, Seán Ó Cuirreáin, in 2007, bringing to nearly 2,000 the total number of complaints since the foundation of the office in 2004.