The National Order of the Arrow Conference, or “NOAC,” is the primary national gathering of Arrowmen. They are typically held every two years unless a conflict exists. NOACs are always held on university campuses. All NOACs have had at least 1,000 attendees and as many as 8,000.
The modern NOAC started in 1948 at Indiana University, Bloomington, Indiana. Indiana University has now hosted ten Conferences, more than any other university. Each Conference has a host lodge that is assigned service duties best performed by a larger local group.