The HSE says its working on allowing people who've tested positive on an antigen test to register their result with the health service.
Many people who've tested positive on an antigen test over Christmas were unable to get a confirmatory PCR.
These people will be unable to obtain a recovery digital Covid cert, while they'll also be ineligible for a booster dose for a period of three months.
This may cause difficulties for those who wish to travel within the EU, as new rules come into effect from February 1st.
HSE CEO Paul Reid says their working to address the issue.