UAB is used in connection with permanent change of station OCONUS, renewal agreement travel, and temporary change of station OCONUS. Employees 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 this subtitle. The UAB shipment is part of, not in addition to, the 18,000 pounds net weight allowance for HHG. The agency or the agency's designee should arrange for the transport of the UAB. In limited situations, the agency may ask the employee to make the arrangements for a UAB shipment. The agency must arrange and ship the UAB in time to ensure that the shipment arrives by the time the employee and/or their family reports to their new official station. The maximum weight allowance the agency may grant for a UAB shipment is—

1. (a) Up to 350 pounds actual weight (including the weight of the luggage or packing material) for the employee and each immediate family member 12 years of age and over; or
2. (b) Up to 175 pounds actual weight (including the weight of the luggage or packing material) for each immediate family member under 12 years of age.