Vaccinations are set to be extended to 12 to 15-year-olds after a recommendation from NIAC.
The rollout could start as early as next week after Cabinet approved the recommendation at their meeting today.
Consent of parents or guardians will be needed to vaccinate their children and they will likely have to accompany them to vaccination centres.
The first appointments may be offered next week in the hope of starting vaccination of the age group before schools return next month.
Currently, the EMA has only approved the Moderna and Pfizer mRNA vaccines for use in the 12-15 age group.
It comes after vaccine registration opened to everybody aged 16 and 17 earlier today.
Taoiseach Micheál Martin earlier confirmed the country's first 'walk-in' vaccination centres are set to open this weekend.
He said the move was part of efforts to encourage "high participation rates" among teenagers and young people.