41 CFR § 302-7.300
When may I be authorized an unaccompanied air baggage (UAB) shipment?
June 9, 2020
UAB is used in connection with permanent change of station OCONUS, renewal agreement travel, and temporary change of station. You may be authorized a UAB shipment prior to transferring from a CONUS location to an OCONUS location, between OCONUS locations, or from an OCONUS location to a CONUS location. UAB for CONUS to CONUS shipments is not allowed under the FTR.