.IE represents the official domain extension or the internet country code top level domain (ccTLD) of Ireland. It was introduced in 1988 and was intended for entities with connection to Ireland.
Registration of a .IE domain name is subject to the following conditions:
The registrant must demonstrate a connection with Ireland (being Irish or an Irish company, owning a trademark valid in Ireland, having irish customers or suppliers, having a service or product or website dedicated to the Irish people, and so on.)
According to the principle of FASTPASS set up by the Irish Registry:
if the holder already owns a .IE domain name, there is no need to prove their connection with Ireland or their identity again.