Partners will be able to attend 12-week maternity scans and C-sections under new HSE guidance.
These measures will be issued to hospitals tomorrow.
While some hospitals had allowed these, the guidelines will become the new HSE standard across all facilities.
Speaking at a HSE press conference today, Chief Clinical Officer Colm Henry said more restrictions will be eased as the vaccine programme progresses.
He said the HSE now wants to get back to where they were pre-pandemic.
He said: "As time goes on, and we have greater confidence in terms of the vaccine uptake among pregnant women and their partner... we'll have greater confidence that there will be less and less harm to anybody presenting to maternity services who is unvaccinated.
"Our next stage... we hope tomorrow to look at that 12-week scan and caesarean sections."
Dr Henry said all six hospital groups are complying with the current guidelines - including around the 20-week anomaly scans and postnatal visits.
He acknowledged there have been some complaints, and they're asking all hospital groups to follow-up cases where the guidelines have not been followed.
Many mothers and their partners have spoken of the impact of the restrictions on partner visits in some maternity hospitals.
On The Hard Shoulder earlier this week, a woman who suffered two miscarriages in the last year said her husband never got to hear their baby's heartbeat.