Proof of a booster is now needed for EU travel if more than nine months has passed since a second dose in the primary Covid vaccine series.
EU Digital Covid Certs received after a primary vaccine series will not be accepted for EU travel if more than 270 days have passed since the second dose.
Passengers without proof of vaccination or proof of recovery from Covid-19 in the previous six months, must show evidence of a negative PCR test result taken within 72 hours prior to arriving in Ireland.
The Department of Health has been issuing updated EU Digital Covid Certificates since 6 January to people who have received a booster dose of a Covid-19 vaccine.
The updated cert contains a QR code, as before, and the new certificate can be stored on the Covid Tracker App, replacing the old one.
The certificates based on booster doses are not time-limited.
The 270-day rule has been introduced across the EU as a result of changes to the EU Digital Covid Cert regulations.
EU states could still impose further requirements, such as negative tests or quarantines, as an exception justified by a deteriorating situation, as long as they are proportionate.
Also from today, passengers can travel to Ireland with proof of vaccination for Novavax, which was recently approved by the European Medicines Agency.
Information on how to get a EU Digital Covid Certificate can be found here.
