On average, 300,000 people are being vaccinated, weekly.
The vaccine portal for those aged 35-39 will open on Sunday.
The Health Minister has confirmed the news saying people aged 39 can register first and it will work downwards based on age.
The Government says over 300,000 people are currently being vaccinated every week.
The HSE says vaccinating people in their thirties will take longer than previous age groups.
Almost 3.5 million doses of the vaccine have so far been issued, with 31 per cent of the adult population fully vaccinated.
HSE CEO Paul Reid says there are two reasons it will take longer to vaccinate those in their 30s.

Tolls Increase On Congested M50 Sparks Protest
Fire Breaks Out At Funeral Home In Naas Town Centre
Concerns Raised As Independent Ireland Leader Suggests Two Pints May Be Safe To Drive
Payroll Snapshot Reveals Scale Of Kildare Teacher Shortages
One Workplace Death Recorded In Kildare Last Year As National Fatalities Surge
Leixlip Near The Top Of IBAL Rankings As Littered Derelict Site Drags Naas Down
Missing Naas Woman Deborah Doyle Located "Safe And Well"
Over 9,000 Tusla Referrals Linked To Poor School Attendance Were Made Last Year