The purpose of ICASS is to provide, on a reimbursable basis, needed administrative services to USG offices located overseas. The administrative support services are provided by ICASS personnel of the DoS stationed at overseas U.S. embassies, consulates, etc. Normally, such personnel perform a variety of services including: personnel, budget and fiscal, general services, communications, security and guard, and management services. The specific services required are the basis of an agreement between DoS and the requesting agency. Charges are based on the amount of services received, with each agency, including DoS, paying its share. The ICAAS system provides an equitable method of sharing the costs of providing "common type" administrative support to the SCO and other agencies at the post.