Since 1 February 2022, vaccine certificates for primary vaccination series will not be accepted for travel if more than 270 days (9 months) have passed since the final dose in the primary vaccine series. Vaccine certificates based on booster and additional doses are not time limited.
People arriving in Ireland do not need to quarantine.
You should follow public health advice if you develop symptoms of COVID-19 or if you are a close contact of a confirmed case of COVID-19.