The Administration Department is responsible for the day-to-day activities that tie together the many departments within the Fernandeño Tataviam Tribal Government and the many programs provided to its membership. The department manages the grants that fund various department projects, such as monthly community events and a newsletter that is distributed to all adult tribal citizens.

Through the direction of the Tribal President the Tribal Administrator is responsible for the daily operations of the Tribal office under the including supervision, personnel functions, submission of contracts/grants to funding agencies, grant administration, and interacting with the federal, state, local, and tribal governments. The Tribal Administrator also works closely with the Tribal Senate, committees, boards and tribal members.