Grand High Zeta. Lambda Chi Alpha's International Board of Directors. Composed of nine officers elected by the General Assembly to serve four-year terms, two selected by the elected Board members to serve two-year terms, and one appointed by the Student Advisory Committee to serve a one-year term. The interpretation of Fraternity laws and policy decisions are executed by the Grand High Zeta between General Assemblies. All members of the Grand High Zeta are alumni volunteers, with the exception of the Grand High Sigma who is an undergraduate.