Industry sources say they believe it will be difficult to implement but are resigned to making the changes.
A two-week pause in the introduction of ticketing for nightclubs has been shot down by the Government.
Industry reps had sought the delay to allow them to put the infrastructure in place to take online bookings for access to nightclubs.
At a meeting this afternoon they were told by Department officials the new regulations will be published tonight, and signed tomorrow.
They will require ticketing for entry, booking at least an hour before arrival and no congregation outside venues.
Industry sources say they believe it will be difficult to implement but are resigned to making the changes.

Delays At Hazelhatch Train Station This Morning Due To Signalling Issues
Government Leaders Meeting Now To Finalise Budget 2027 Details
Daniel Kinahan Due In Court Charged With Directing Criminal Organisation Activities
Almost 70,000 Teachers To Begin Industrial Action Today
INMO Says Graduate Nurses, Midwives Not Being Offered Contracts Amid Budgetary Issues
Minister Lawless Says Govt. Can't Solve Every Issue For Students
E-Scooter Ban For Under 18s Comes Into Effect
CHI Failed To Comply With Regulations For Children's Health Records