CONUS travel requires a Travel Authorization Request (TAR) submitted at least ten business days in advance; OCONUS travel requires a TAR submitted at least thirty days in advance (a minimum of forty-five days for CENTCOM-area or designated high-risk destinations). The Tier 3 SEME Field Service Representative (FSR) serves as the senior technical authority responsible for advanced diagnostics, integration, maintenance, and operational support of complex systems and support equipment within the SEME architecture.