<ul><li><a href=http://revisedacts.lawreform.ie/eli/2011/act/21/front/revised/en/html target=_blank>Communications Regulation (Postal Services) Act 2011(Act No. 21 of 2011, last amended, 10 April 2017, section 38)</a></li><li><a href=https://www.citizensinformation.ie/en/consumer/phone-internet-tv-and-postal-services/postal-services/ target=_blank>Postal Services in Ireland(Citizen Information Board)</a></li></ul>