The wearing of masks in retail settings and on public transport is no longer mandatory from today.
Close contact rules have also changed for everyone, except healthcare workers.
Public health measures in schools – such and masks, pods and staggered arrival times – have also come to an end.
The move comes almost two years to the day that the first case of Covid-19 was confirmed in Ireland.
Hospitality workers are also no longer required to wear a face covering and on public transport, masks are no longer mandatory.
However, wearing a face covering is still advised under public health guidance.
Mask requirements will also remain in healthcare settings.
The rules on close contacts have also changed, so that if a person has no symptoms, they no longer need to test or isolate, regardless of their vaccination status.
Symptomatic close contacts are still advised to isolate.
Healthcare workers who have a confirmed case of Covid-19 in their home will need to take antigen tests and follow different guidance.