| Office of Casualty AssistanceThe Office of Casualty Assistance (OCA) provides administrative assistance and on-going support to families following the death of a US citizen Department of State employee serving abroad or their family member, or of a Department of State employee in the United States. Contact the Office of Casualty Assistance at (202) 736-4302, email oca@state.gov. Information provided by the Family Liaison Office | ||||||||||||||||||||||||||||||||||||||