Pádraig O'Sullivan (Cork North Central, Fianna Fail) | Oireachtas source

When the State Examinations Commission sends out communiqués and advertises for examiners, it will obviously do so in the newspapers and online and so on. However, how does it specifically communicate to teachers? I was involved with two unions when I was teaching and I can safely say it was very rare for this to come up or be encouraged locally. Is this done through the Teaching Council or directly through school principals? What is the mechanism?