| Abbreviation | Definition |
|---|---|
| CBCX | Colonial Brick |
| CBCX | Morton International |
| CBFU | Chiquita Brands |
| CBGR | Council Bluffs Railway (Great Western Railway of Iowa) |
| CBGR | Council Bluffs Railway/Great Western Railway of Iowa |
| CBHU | China Ocean Shipping |
| CBHU | China Ocean Shipping Company |
| CBIU | Combi Line-Lash |
| CBIX | Central Bi-Products |
| CBL | Conemaugh and Black Lick Railroad |
| CBLU | Cooper Brothers Containers |
| CBLU | Cooper Brothers Containers Limited |
| CBNS | Cape Breton and Central Nova Scotia Railway |
| CBP | Castle Bar Park Station |
| CBPU | CBSL Transportation Services |
| CBPU | CBSL Transportation Services Limited |
| CBQ | Burlington Northern and Santa Fe Railway Company |
| CBQ | Chicago, Burlington and Quincy Railroad (BNSF Railway) |
| CBQZ | Burlington Northern and Santa Fe Railway Company |
| CBQZ | Chicago, Burlington and Quincy Railroad (BNSF Railway) |