The government is considering introducing them as proof someone has been vaccinated against Covid-19.
The certs are being considered for EU air travel, but may also be used to allow for greater attendance numbers at events.
If approved next week, doses of the Pfizer BioNTech vaccine may arrive into the country within the next two weeks.
Health Minister Stephen Donnelly says they're still deciding what form the vaccine certs will take:
"When we have recommendations from the experts on the appropriate use of it, obviously, then we can we can decide what's the easiest and most secure thing to do in terms of- is it paper based or card based for example like our driver's licence. Or is it a digital certificate that you might, for example, have to submit to an airline before being able to book a flight."
