Like the Boy Scouts of America's Areas, The Order of the Arrow is organized into four regions, Central, Southern, Northeast and Western Region; the boundaries of each OA region correspond with the boundaries of the BSA's regions. Each region has an elected region chief, a volunteer adult who is appointed as the region chairman to oversee its region Committee, and an appointed professional (staff) adviser. Each region chief is elected at the national planning meeting the day after the election of the national chief and vice chief by a caucus of the section chiefs from the given region. The members of the region committee consist of the region chief, the region chairman, all national committeemen from the region, and other appointed adult volunteers. Each region annually has a gathering of all section officers and advisers. As a region, they are trained in topics relevant to their jobs. Each region also provides opportunities for Order of the Arrow members to go through a National Leadership Seminar. This weekend course is highly rated and a lasting memory for many members.