The annual Remembrance service is scheduled to be held at Queen's University Belfast's war memorial, located directly before the main Lanyon Building, on Sunday 8 November.
A ban on wearing collarettes had been in place for previous events at the institution, though some students representing the Orange Order were observed using them during past ceremonies.
The Young Unionists club has stated that removing the prohibition represents a positive move toward greater inclusion within the university community.
Several student societies and clubs are anticipated to participate in the event by laying wreaths at the memorial site.
The decision regarding the attire policy was reached after consideration of the specific circumstances surrounding the Orange Order's involvement in recent years.
Organisers have indicated that the focus of the service remains on remembrance rather than political affiliation or sectarian display.
Attendance is expected to be high given the historical significance of the location and the nature of the occasion.
The university administration has not issued further details beyond the venue, date and the involvement of student groups.