The structure of Rotary Clubs is basically the same throughout the world. Each Club has a Board of Directors, which consists of the following officers: As well, the officers listed below can be members of the Board as the club by-laws permit: All of the above officers, with the exception of the Sergeant-At-Arms, are elected by the club's members. (The Sergeant-At-Arms is elected by the Board.) With the Board's approval, the President appoints the following, core, standing committees: and such other committees as the President and Board agree upon. Whatever committees may exist, the President is always ex officio a member of those committees.