National
The Communications Regulation (Postal Services) Act 2011 (No. 21/2011) was enacted on 2nd August 2011 and puts in place a regulatory framework for the full opening to competition of the postal market, as prescribed by the 3rd Postal Services Directive, 2008/6/EC. This legislation revokes previous secondary legislation, SI 616/2002 and SI 135/2008.
The Postal and Telecommunications Services Act 1983 (No. 24/1983) under which An Post was established can be found on the Irish Statute Book website here.
EU
Directive 97/67/EC sets out the rules for the development of a liberalised postal market and the improvement of quality of postal service standards.
Directive 2002/39/EC amends 97/67/EC and sets out the terms regarding the further opening to competition of EU postal services.
Directive 2008/6/EC amends 97/67/EC and sets the date and terms for full liberalisation of EU postal services.