Live music is now allowed outdoors in pubs, restaurants and hotels under re-drafted Fáilte Ireland guidelines.
Multiple tables can also be booked for outdoor events that can accommodate up to 200 people.
Drafted in the wake of the controversy over Tánaiste Leo Varadkar's attendance at a party for 50 people at Dublin's Merrion Hotel organised by Katherine Zappone, these guidelines significantly change the scope for outdoor events.
Gatherings of up to 200 people for social reasons are allowed in outdoor settings at the likes of pubs, restaurants and hotels.
Multiple tables can be booked in those settings - but intermingling between them isn't allowed.
Live music is also allowed now in outdoor settings, as long as the performer is more than two metres away from any patrons.
Opening hours for hospitality will stay the same, with closing time at 11.30pm.
This is something the Restaurants Association had called for change on.
Speaking on Thursday, head of the association Adrian Cummins told Newstalk: "It was news to our industry that we're now allowed up to 200 people for outdoor gatherings within social settings.
"We didn't know that until yesterday, until the Attorney-General made the announcement.
"We are disappointed that it took an event for 50 people to bring this announcement around and delivered to the industry.
"It's not how we would like to do business, we want to make sure that we do everything right.
"And also we now need to say to the Government 'We've missed a huge amount of revenue within hospitality'.
"So they need to look at the closing hours of 11.30 for industry immediately to try and give us some sort of recourse for the loss of revenue over the last number of weeks."
While the guidelines for weddings have not been changed - it is still a limit of 100 people and no live music allowed at the reception.
It comes after the Attorney-General advised the Government outdoor events for up to 200 people are allowed for social reasons - as long as they are not weddings, sporting events, training or in a private home.