Level 5 coronavirus restrictions have been lifted
People are still being advised to work from home if they can and not to mix with other households.
From today, there's also a recommendation to wear a face mask outdoors on busy streets.
Restaurants and pubs serving food will have to wait until Friday to welcome customers back.
Chief Medical Officer, Dr Tony Holohan, says it's important everyone keeps following public health advice as the country re-opens:
"The greater the extent of socialisation that takes place, the greater the opportunities there are for this virus to spread. It is open to each individual now to begin to take on board the basic public health advice. To recognise the circumstances that constitute risk, that constitute danger of transmission of infection, and to take those actions to stay away. Stay away from a crowded job, stay away from the crowded streets, stay out of the crowded bus."