Companies Act 2014
Provisions as to names of PLCs
1008. (1) The name of a PLC shall end with one of the following:
— public limited company;
— cuideachta phoiblí theoranta.
(2) The words “public limited company” may be abbreviated to “p.l.c.” or “plc” (including either such abbreviation in capitalised form) in any usage after the company’s registration by any person including the PLC.
(3) The words “cuideachta phoiblí theoranta” may be abbreviated to “c.p.t.” or “cpt” (including either such abbreviation in capitalised form) in any usage after the company’s registration by any person including the PLC.
(4) A PLC carrying on business under a name other than its corporate name shall register in the manner directed by law for the registration of business names but the use of the abbreviations set out in subsection (2) or (3) shall not of itself render such registration necessary.