# Liste des sigles de l'AAR débutant par R
## R

* RACN - Raccoon River Railroad
* RAIX - Union Carbide
* RAMX - Rail America
* RAPX - Rapco Transportation Company
* RAWX - Platte River Power Authority
* RAX - RPI-AAR Cooperative Test Program
* RBBN - Burlington Northern Railway
* RBBQ - Burlington Northern Railway
* RBBX - Western Fruit Express; Ringling Brothers and Barnum and Bailey Circus
* RBCS - Burlington Northern Railway
* RBMN - Reading, Blue Mountain and Northern Railroad
* RBNX - Fruit Growers Express
* RBOX - Railbox Company; TTX Corporation
* RBW - Burlington Northern Railway
* RC - Rosslyn Connecting Railroad
* RCCX - Relco Nevada Corporation (Relco Tank Line Division)
* RCOX - Arco Products Company
* RCRX - Reagent Chemical and Research, Inc.
* RDG - Reading Railroad; Conrail
* RE - Relco
* RECX - Central Louisiana Electric Company
* REDX - Saudi Research and Development Corporation, Ltd. (REDEC)
* REGX - Regus Industries LLC
* RELX - Relco Nevada Corporation (Relco Tank Line Division)
* RESX - Rescar, Inc.
* RFCX - R&F Coal Company
* RFMX - Robert F. Miller; Coldwell-Baker
* RFP - Richmond, Fredericksburg and Potomac Railroad; CSX Transportation
* RGCX - Rio Grande Chemical Sales Company
* RGIX - Republic Gas and Utilities Corporation
* RGS - Rio Grande Southern Railroad
* RGW - Rio Grande Western Railway
* RHAX - Sulphur Sales, Inc.
* RHBX - R. H. Bogle Company
* RHRX - Rahr Malting Company
* RI - Chicago, Rock Island and Pacific Railroad (Rock Island)
* RIIX - Reilly Industries, Inc.
* RILX - Interail, Inc.
* RJCC - R. J. Corman Railroad
* RJCW - R. J. Corman Railroad/Western Ohio Line
* RJNX - R. H. Bogle Company
* RKCX - Knox Kershaw, Inc.
* RKMW - Chicago, Rock Island and Pacific Railroad (Rock Island) Milwaukee Road directed operations
* RLGN - Mackenzie Northern Railway
* RLIX - Rail Link Inc.
* RLKX - R. L. and S. S. Klein
* RLSX - Robert L. Shipp
* RMCX - Reynolds Metals Company
* RMDX - American Refrigerator Transit Company
* RNDX - ACF Industries
* ROCK - Chicago, Rock Island and Pacific Railroad (Rock Island)
* ROCX (I) - Rock Island Improvement Company (Rock Island)
* ROCX (II) - Rocky Mountain Transportation Services
* ROIX - Shintech, Inc.
* ROYX - TCL, Inc.
* RPCX - Ralston Purina Company
* RPRC - Richmond Pacific Railroad
* RR - Conrail
* RREX - Rex Railway
* RRLX - Railroad Resources, Inc. (maintenance of way cars)
* RRRX - Rex Leasing, Inc.
* RS - Roberval and Saquenay Railway
* RSB - Rochester Subway
* RSLX - RSL Corporation
* RSOR - Riceboro Southern Railway
* RSP - Roscoe, Snyder and Pacific Railway
* RSPX - Evans Railcar Leasing
* RSR - Rochester and Southern Railroad
* RSS - Rochester Subway; Rockdale, Sandow and Southern Railroad
* RSTX - RSTX, Inc.
* RSUX - Riley Stoker Corporation
* RSVX - RAILSERV Management Corporation
* RSYX - Refined Sugars, Inc.
* RT - River Terminals Railway
* RTA - Regional Transportation Authority
* RTCX - Union Tank Car Company
* RTLX - Relco Nevada Corporation (Relco Tank Line Division)
* RTMX - Richmond Leasing Company
* RTPX - Wheelabrator Coal Services Company
* RTTX - TTX Corporation
* RUDX - Ruddy Tank Car Company
* RUSX - US Rail Services, Inc.
* RUT - Rutland Railroad; Vermont Railway
* RV - Rahway Valley Railroad
* RVCX - Richter Vinegar Corporation
* RVLX - Reinhardt Vinegar