id definition 145 Empty car under directive CSD145 150 Unassigned special equipped car that is to be handled in accordance with the provisions of directive CSD150 155 Empty car under CSD155 435 Empty car under directive CSD435 439 Special heavy duty flat car that is to be handled under the provisions of directive CSD439 145A Loaded car under directive CSD145 that is to return to agent at city specified 145S Loaded car under directive CSD145 that is to return to shipper at billed origin 145X Assigned TTX car that is to be returned to shipper at billed origin by reverse of loaded move 150X Unassigned TTX car that is to be handled in accordance with trailer train directive 150 155A Loaded car under directive CSD155 that is to return to agent at city specified 155S Loaded car under directive CSD155 that is to return to shipper at billed origin 435A Loaded car under directive CSD435 that is to return to agent at city specified 435S Loaded car under directive CSD435 that is to return to shipper at billed origin CSR5 Empty Car Moving Under Car Service Rule 5 Charges 34617 Car being returned per car owner's instructions 34618 Car being returned per the pool operator's instructions 34619 Car being returned per AAR/ICC instructions CMD1A Loaded TTX cars under directive CMD1 that are to be returned to the origin road at the city specified CMD1S Loaded TTX cars under directive CMD1 that are to be returned to shipper at billed origin