Originally Posted by
Jjkl
Could you give me the link to regulation about the topic you are telling about.
I read somewhere that even transiting through Northern Ireland to Republic of Ireland from UK needs psl, they wrote that this is mandatory.
I am not sure if you are asking about the UK or Irish PLF. A couple of links which should help:
https://www.nidirect.gov.uk/articles...on-travel-area
https://www.gov.ie/en/publication/ab...-locator-form/
I am not sure, but you may well need the form for Ireland.