16 and 17 year olds can register for a Covid-19 vaccine from today.
The HSE's online portal is opening for this age-group, meaning they can sign up for a Moderna or Pfizer vaccine.
HSE chief executive, Paul Reid, says this generation has sacrificed a lot during the pandemic, and it's their turn to get protected.
Meanwhile, 26,000 Johnson and Johnson vaccines are due to arrive here later this week, according to the HSE.
It comes as pharmacies have almost run out of these Covid jabs, after the rollout was extended to under-35s earlier this month.
They've administered nearly 150,000 so far - with 50,000 in the past week alone.
But Darragh O'Loughlin, from the Irish Pharmacy Union, says the shortage of supply is very concerning.