1 | UTBI | USA TRUCK | | | SCAC4 |
2 | UTBT | UNITY TRUCKING BOAT TRANSPORTATION | | | SCAC4 |
3 | UTBX | Union Tank Car Co. | 1/1975; added 4/1975; 1/1980-1/1994 | | NAKINA |
4 | UTBX | Union Tank Car Co. | 1/75; added 4/75; 1/80-1/94 | | NRHS |
5 | UTBX | (UTCX) UNION TANK CAR CO. | | | PWRC |
6 | UTBX | Union Tank Car | | | RSRV |