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.

Tens Of Thousands Celebrate At Dublin Pride Parade
National Homelessness Figures Drop For First Time In Months, With Decrease Also Seen In Kildare
Report Finds Improvement In Inpatient Mental Health Services
Status Yellow Thunderstorm Warning For Kildare And Other Counties Today
Man Accused Of Woman's Murder Near IPAS Centre Dies In Prison
Temperature Warning Extended Until Saturday
Ireland Could See Hottest Day In 140 Years Today
Kildare Minister Says Ireland Is At "Critical Moment" In Relation To AI