The Covid-19 vaccine portal is to open to people aged 16 and 17 from Tuesday, July 27, the Health Minister has confirmed.
Stephen Donnelly announced on Twitter on Monday that those in this bracket can now sign up for an mRNA vaccine through the portal from Tuesday.
He wrote: "Registration for those age 16 and 17 for a COVID-19 vaccine appointment will start tomorrow, Tuesday.
"It's important that we continue to get as many of our population vaccinated as soon as vaccines are available and following the safety advice of our experts."
The move comes as another major boost to Ireland's jab program as the rollout accelerates at an impressive pace.

Currently, over 75% of adults in Ireland have received one dose of the vaccine while 66.3% are fully vaccinated.
It comes as a further 1,345 Covid-19 cases have been confirmed this evening.
141 people are currently in hospital with Covid-19, 25 of which remain in ICU.
Dr Tony Holohan, Chief Medical Officer warned of the latest rise in cases: “We are currently experiencing high incidence of Covid-19 across many counties. There has been a significant increase in hospitalisation over the last fortnight.
“Please continue to avoid crowded spaces, keep distance from others, keep indoor settings well ventilated by opening windows and doors, wear a mask where appropriate.”
Meanwhile, Deputy Chief Medical Officer Dr Ronan Glynn urged people to get vaccinated as cases rise in younger age cohorts.
He said : “87% of cases today are in those aged less than 45 years. If you are awaiting your vaccine or are awaiting your second dose, continue to protect yourself by following public health advice.
“Vaccines against COVID-19 are safe and effective. Please get vaccinated as soon as you have the opportunity to do so.”