Who is responsible for the safety of guests under an SOP? July 29, 2020 14:56 Updated The Special Occasion Permit (SOP) holder, event organizer, and the venue are equally liable for the safety of all guests. Related articles Can employees consume alcohol while on the job? Is Smart Serve mandatory under a Special Occasion Permit (SOP)? Can volunteers be given complementary alcoholic drinks at an event? Liquor Delivery Service Licence. Can a Certified person be fined/charged for over-serving or failing to obtain proper I.D.?