(A&WP) Atlanta & West Point R.R. Co.	AWP	Apr-70
(AL&S) Alton & Southern R.R.	ALS	Apr-70
A & R Leasing, L.L.C.	IPOX	added 7/97; 7/2000
A&G R.R., L.L.C.	AG	eliminated 1/97
	AGRD	added 4/94; 7/2000
A&K R.R. Materials, Inc.	ANKX	1/94-7/2000
A&R Leasing, L.L.C.	ALRX	added 1/2001
A. & R. Line, Inc.	ARE	Jul-00
A. Guthrie & Co.	AGX	1/52-4/61
A.C.F. Industries -- temporary expiring 10Jan58	ACFX	Oct-57
A.C.F. Industries -- temporary expiring 15Oct61	ACFX	Apr-61
A.D. Schader	ADSX	1/52-4/61
A.E. Fagan	FAEX	added 4/54; 10/57
A.E. Staley Manufacturing Co.	AESX	Apr-38
	SSPX	added 4/92; 1/94-7/2000
	STLX	added 4/80; 1/94-7/2000
	STRX	added 4/90; eliminated 1/94
	STSX	added 10/90; 1/94-7/2000
	TWSX	added 1/98; 7/2000
A.E. Staley Manufacturing Co., Industrial Products Group	STMX	1/94-7/2000
A.F. Pringle & Co., Inc.	PRFX	Jan-52
A.G. Bartlett Co.	AGBX	added 4/62; 7/65-10/66; eliminated 10/67
A.G. Pipe Lines, Inc.	AGEX	added 10/81
A.M. Richter Sons Co.	RSX	4/38-10/57; eliminated 10/59
A.P. Callagan & Co.	CVX	Apr-38
A.R. Blossman, Sr.	BHTX	eliminated 4/62
A.R. Eppenauer	EPPX	Jan-52
A.R.P. Leasing Corp.	ARPX	added 4/71; 1/75
AAA Warehouse Corp.	AAAX	Jan-94
Aaron Ferer & Sons Co.
AB Rail Investments, Inc.	ABRX	Jul-00
ABB Brown Boveri Power Equipment, Inc.	BBCX	added 1/89; eliminated 1/90
ABB Brown Boveri Power Generation, Inc.	BBCX	added 1/90; eliminated 4/90
ABB Power Generation, Inc.	BBCX	added 4/92; 1/94-7/2000
ABB Power T&D Co., Inc.	PTDX	added 10/90; 1/94; eliminated 1/99; 7/2000
ABB Steam Power Generation Co.	BBCX	added 4/90; eliminated 4/92
Abbeville-Grimes Ry. Co., Inc.	AG	added 7/89; 1/94; eliminated 4/94
Abbey Chemical Corp.	ABEX	4/61-4/70; eliminated 4/73
Abbott Labs	ABBX	added 1/82; eliminated 4/93; 1/94-7/2000
Abbotts Dairies, Inc.	ADX	4/38-1/52
Aberdeen and Briar Patch Ry. Co.	ABPR	added 4/84; eliminated 1/88
Aberdeen and Rockfish R.R. Co.	AR	1/75; added 7/78; 1/80-7/2000
Aberdeen Carolina & Western Ry. Co.	ACWR	added 4/88; eliminated 10/93; 1/94; eliminated 7/94; 7/2000
Aberdeen, Carolina & Western Ry. Co.	ABPR	added 1/88; eliminated 1/92
Aberfoyle Manufacturing Co.	AMFX	Apr-38
Abilene & Southern Ry. Co.	A&S	7/23-1/52
	AS	10/57-1/75
Abraham Bros. Packing Co.	ABRX	Apr-38
Acadiana Ry. Co.	AKDN	1/94-7/2000
Ace Cogeneration Co.	ACEX	added 1/93; 1/94-7/2000
Ace Tank Car Co.	ATCX	1/52-10/57; eliminated 7/60
ACF Industries, Inc.	ACFX	added 4/88; 1/94; eliminated 7/97
	AHMX	added 4/88; 1/94; eliminated 10/96
	KTX	added 4/88; 1/94; eliminated 7/97; 7/2000
	PCIX	added 4/88; 1/94-7/2000
	RJRX	added 4/88; 1/94; eliminated 7/97; 7/2000
	RNDX	added 10/2000
	SERX	added 4/88; 1/94-7/2000
	SHPX	eliminated 4/88; eliminated 10/93; 1/94; added 7/97; 7/2000
	STOX	added 1/2001
ACF Industries, Inc., Amcar Division	RNDX	1/94-7/2000
	STOX	1/94-7/2000
ACF Industries, Inc., Amcar Division -- temporary expiring 1Apr75	RNDX	Jan-75
	STOX	Jan-75
ACF Industries, Inc., Amcar Division -- temporary expiring 1Jan81	RNDX	Jan-80
	STOX	Jan-80
ACFA, Arrendadora de Carros de Ferrocarril, S.A.	AAMX	added 4/85; 1/94-7/2000
ACI Co.	WEAX	added 4/76; eliminated 1/79
Acme Gas Corp.	ACGX	added 7/74; 1/75-1/94; eliminated 4/97
Acme Petroleum Co.	APTX	Apr-38
Adams Industries, Inc.	AIIX	added 10/69; 4/70-1/75; eliminated 10/78
Addlestone Recycling Corp.	ADRX	Jul-00
Adirondack Bottled Gas Corp.	ABX	1/52-4/61; eliminated 1/62
Adirondack Ry. Corp.	ADIR	Jan-80
ADM LEASCO	ADMX	added 1/80; 1/80; eliminated 10/80
ADM Milling Co.	FLRX	added 1/94-7/2000
	WHTX	added 7/94; 7/2000
ADM Transportation Co.	ADMX	added 10/80; 1/94-7/2000
	UELX	added 4/88; 1/94-7/2000
Adolph Coors Co.	CORX	added 1/87; eliminated 7/89
Adrian & Blissfield Rail Road Co.	ADBF	added 7/93; 1/94-7/2000
Advanced Aromatics, L.P.	AALX	Jul-00
Aeropres Corp.	AREX	added 10/74; 1/75-7/2000
Aetna Oil Co., a Division of Ashland Oil & Refining Co.	LARX	added 4/54; 10/57-4/61
Aetna Oil Co., Inc.	LARX	4/38-1/52; eliminated 4/54
AF Ry. Industries, Inc.	AFRX	Jul-00
AFFCAR, Inc.	AFFX	added 5/83
Ag Processing, Inc.	AGPX	added 10/95; 7/2000
	IMTX	added 10/95; 7/2000
Agar Packing & Provision Co. (Mather Stock Car Co.)	AGRX	Apr-38
AGP, L.P.	IMTX	added 4/92; 1/94; eliminated 10/95
Agrex, Inc.	KPLX	added 1/85; eliminated 1/88
AGRI Financial Services, Inc.	AGIX	1/94; eliminated 10/95
	ALEX	1/94; eliminated 10/95
AGRI Industries	AGIX	added 4/79; 1/80
	AGIX	added 10/95; eliminated 4/2000; 7/2000
	ALEX	added 10/95; eliminated 10/99; 7/2000
Agrico Chemical Co.	AAX	Oct-66
	AAX	1/75-1/80; eliminated 10/90
Agrico Chemical Co., Division of Continental Oil Co.	AAX	added 4/66
	AAX	Apr-70
Agricultural Minerals L.P.	AGMX	added 1/95; eliminated 10/96
Agrifos L.L.C.	AGRX	Jul-00
Agri-Leasit	ALEX	added 7/80; eliminated 4/84
Agrium U.S. Inc.	AGHX	added 10/96; 7/2000
Agtrans Corp.	SONX	added 10/86; eliminated 7/91
Ahnapee & Western Ry. Co.	AW	4/38-4/70
Aiple Towing Co.	ATCX	added 10/70; eliminated 4/73
Air Liquide America Corp.	BIGX	added 1/95; 7/2000
	BTAX	added 4/97; 7/2000
	CDCX	added 1/95; 7/2000
	IAPX	added 1/95; 7/2000
Air Products and Chemicals, Inc.	APRX	added 1/75; 1/75-7/2000
	APTX	added 1/91; 1/94-7/2000
Air Products Manufacturing Co.	APMX	1/94-7/2000
Air Products Polymers, L.P.	APHX	added 1/99; 7/2000
Air Reduction Co., Inc. (General American Transportation Corp.)	AROX	Oct-66
Airco Alloys and Carbide, a Division of Air Reduction Co. Inc.	AADX	added 7/68; 4/70
Airco Alloys and Carbide, a Division of Airco, Inc.	AADX	eliminated 7/74
Airco Industrial Gases Division, Air Reduction Co., Inc.	ARIX	added 10/67
Airco Industrial Gases, a Division of Air Reduction Co., Inc.	PCIX	added 4/67; eliminated 1/72
Airco Industrial Gases, A Division of Airco, Inc.	ARIX	added 1/72; 1/75-1/94
	DICX	added 1/72; eliminated 4/73
	PCIX	eliminated 4/73
	PCIX	added 1/72
Airco Industrial Gases, Division Air Reduction Co., Inc.	DICX	eliminated 1/72
Airco Industrial Gases, Division of Air Reduction Co. Inc.	ARIX	4/70; eliminated 1/72
Airco Welding Products Division, Air Reduction Co., Inc.	AWCX	added 10/71
Airco Welding Products, a Division of Airco, Inc.	AWCX	1/75-1/80; eliminated 7/86; 1/94-7/2000
Ajax Transportation Co., Inc.	AJAX	Apr-38
AKF Corp.	AKFX	Jul-00
Akron & Barberton Belt R.R.	A&BB	7/23-4/38
Akron & Barberton Belt R.R. Co.	ABB	1/75-1/94; eliminated 4/95; 7/2000
Akron Barberton Cluster Ry. Co.	AB	added 10/94; 7/2000
Akron, Canton & Youngstown R.R. Co.	ACY	4/38-1/75; eliminated 1/77; eliminated 1/82
AKZO Chemicals Inc.	AKZX	added 4/89; 1/94; eliminated 1/95
Akzo Chemie America	AKZX	added 1/87; eliminated 4/89
AKZO Coatings Inc.	AEVX	added 4/91; 1/94; eliminated 4/95; 7/2000
AKZO Nobel Chemicals, Inc.	AKZX	added 1/95; 7/2000
Alabama & Florida Ry. Co.	AF	1/94-7/2000
Alabama & Gulf Coast Ry. LLC	AGR	added 10/98; 7/2000
Alabama and Florida R.R., Inc.	AFLR	added 1/87; eliminated 10/87; eliminated 4/92; 1/94-7/2000
Alabama Great Southern R.R. Co.	AGS	1/75-7/2000
Alabama Metalurgical Corp.	ALAX	added 7/74; 1/75-1/80; eliminated 1/82
Alabama Northern Ry. Co.	ABN	23-Jul
Alabama Power Co.	APOX	added 4/98; eliminated 7/99; 7/2000
	ECGX	added 1/91; 1/94; eliminated 7/99; added 10/99; 7/2000
	JHMX	added 4/98; eliminated 7/99; added 10/99; 7/2000
	JWRX	added 10/94; eliminated 7/99; added 10/99; 7/2000
	POX	added 1/2000
Alabama R.R. Co.	ALAB	added 7/93; 1/94-7/2000
Alabama River Woodlands, Inc.	ARWX	added 4/81; 1/94-7/2000
Alabama-Georgia Syrup Co.	AGSX	1/52; eliminated 10/53
Alameda Belt Line	ABL	1/75-1/94; eliminated 7/99; 7/2000
Alamo Gulf Coast R.R. Co.	AGCR	added 7/96; eliminated 10/98; 7/2000
Alamo Tank Car Co.	AMOX	Jan-52
Alan Eslisk	AEIX	1/94-7/2000
Alan Kelling/KLGX	KLGX	added 10/87; eliminated 1/89
Alan Wood Steel Co.	AWSX	1/52; eliminated 4/54
	RNWX	1/52; eliminated 4/54
Alaska Asphalt Co.	ALAX	eliminated 7/59
Alaska British Columbia Transportation Co.	ABCK	1/80-1/94
Alaska Hydro-Train	AHT	Jan-80
Alaska R.R.	ARR	7/65-1/80; eliminated 4/85
Alaska R.R. Corp.	ARR	added 4/85; 1/94-7/2000
Alaska Rail Car Co.	ARCX	added 7/64; 7/65-1/80; eliminated 7/92
Albamex	AMEX	added 10/81; eliminated 4/88; 1/94
Albany & Eastern R.R. Co.	AERC	added 10/99; 7/2000
Albany Port District	APD	1/75-7/2000
Albemarle Corp.	EBAX	added 7/94; 7/2000
Albert City Elevator	ALBX	added 4/80; eliminated 10/89
Albert RailNet, Inc.	ARN	Jul-00
Alberta & Orient Glycol Co. Ltd.	AOUX	added 10/94; 7/2000
Alberta Gas Chemicals Ltd.	AGCX	added 7/80; eliminated 4/90
Alberta Gas Chemicals, Inc.	AGCX	added 7/78; 1/80; eliminated 7/80
Alberta Government	ALNX	added 1/81; 1/94-7/2000
	ALPX	added 1/81; 1/94-7/2000
Alberta Linseed Oil Co., Ltd.	ALOX	4/38-10/57; eliminated 10/59; added 4/61; 4/61-7/65; eliminated 7/65
Alberta Prairie Rail Excursions	APXX	1/94-7/2000
Albis Canada, Inc.	ALSX	added 7/89; eliminated 4/93; 1/94; added 10/96; eliminated 4/97; 7/2000
Albright & Wilson Americas Inc.	AWIX	added 1/89; eliminated 4/93; 1/94; added 4/97; eliminated 1/2000; 7/2000
Albright & Wilson Company	WACX	added 4/90; 1/94-7/2000
Albright & Wilson Inc.	AWIX	added 7/86; eliminated 1/89
Alcan Smelters and Chemicals, Ltd.	ALCX	added 4/92; 1/94-7/2000
Alcolu R.R. Co.	ALU	23-Jul
Alexander R.R. Co.	ARC	1/75-7/2000
Alexandria & Western Ry. Co.	A&W	23-Jul
Algiers, Winslow and Western Ry. Co.	AWW	1/75-1/94; eliminated 4/98; 7/2000
Algoma Central & Hudson Bay Ry. Co.	AC	7/23-7/65
Algoma Central R.R., Inc.	AC	added 4/95
	ACIS	added 4/95
Algoma Central Ry.	AC	10/66-1/94; eliminated 4/95
	ACIS	added 4/74; 1/75-1/94; eliminated 4/95
Algoma Central Ry., Inc.	AC	added 10/95; 7/2000
	ACIS	added 10/95-7/2000
Algoma Eastern Ry.	AER	Apr-38
Algoma Steamships, Ltd.	ASLX	added 1/79; 1/80; eliminated 10/84
Aliquippa and Southern R.R. Co.	ALQS	1/75-7/2000
All Minerals Co.	LMCX	eliminated 1/85
Allegany Refiners, Inc.	ARIX	Apr-38
Allegheny & Eastern R.R., Inc.	ALY	added 1/93; 1/94-7/2000
Allegheny & South Side	AYSS	1/75-1/80
Allegheny R.R. Co.	ALY	eliminated 1/93
Allegheny Southern R.R., Inc.	ASR	Jul-00
Allegheny Southern Ry.	ASRW	added 1/83; eliminated 1/85
Allegheny Valley R.R. Co.	AVR	Jul-00
Allen Packing Co., A Division of Food Fair Stores, Inc.	ALPX	added 7/67; 4/70-1/80; eliminated 4/80
Alliance Machine Co.	ALLX	added 4/85; eliminated 7/89; added 1/93; 1/94; eliminated 4/96; added 10/96; eliminated 4/97; 7/2000
Alliant Energy	COLX	added 4/2000; 7/2000
	EDGX	added 4/2000; 7/2000
	IESX	added 4/2000; 7/2000
	IPWX	added 4/2000; 7/2000
	LNTX	added 4/2000; 7/2000
	OGSX	added 4/2000; 7/2000
	WISX	added 4/2000; 7/2000
Allied Canada, Ltd.	ACAX	added 7/87; eliminated 10/88
Allied Chemical Canada, Ltd.	ACAX	eliminated 5/83
	NLX	added 7/63; 7/65
	NLX	4/70-1/80; eliminated 5/83
Allied Chemical Co.	ACDX	Jan-94
Allied Chemical Co. (Allied Corp.)	ACAX	added 7/93; eliminated 1/99
	ACDX	added 7/84
	ACDX	eliminated 1/99
	ACTX	added 4/82; 1/94; eliminated 1/99
Allied Chemical Corp.	ACTX	added 10/72; 1/75-1/80; eliminated 4/82
	GCX	added 1/67; 4/70; eliminated 10/72
Allied Chemical, a Division of Allied Canada, Inc.	ACAX	added 5/83; eliminated 7/87
	NLX	added 5/83; eliminated 4/84
Allied Chemicals Canada, Inc.	ACAX	added 10/88; eliminated 7/93
Allied Chlorine & Chemical Products, Inc.	ALLX	added 1/67; eliminated 7/69
Allied Foods	ALFX	4/61-7/65; eliminated 1/66
Allied Lime Co.	APCX	added 1/90; 1/94; eliminated 10/95; added 10/96; 7/2000
Allied Products Co.	APCX	added 4/81; eliminated 1/90
Allied Services--A Division of Allied Equities Corp.	ASDX	1/75-1/80
AlliedSignal Inc.	ACAX	added 1/99; eliminated 7/2000
	ACDX	added 1/99; eliminated 7/2000
	ACSX	added 1/99; eliminated 7/2000
	ACTX	added 1/99; eliminated 7/2000
	AFPX	added 1/99; eliminated 7/2000
	GCX	added 1/99; eliminated 7/2000
AlliedSignal-Fibers	AFPX	added 1/95; eliminated 1/99
Allis-Chalmers Corp.	ACMX	added 10/71; 1/75-1/80; eliminated 7/86
Allis-Chalmers Hydro, Inc.	ACMX	added 7/86; eliminated 1/87
Allis-Chalmers Manufacturing Co.	ACHX	Apr-38
	ACMX	added 10/57; 10/57-4/70; eliminated 10/71
Allis-Chalmers Power Systems, Inc.	KWUX	1/80; eliminated 1/83
Alltank Equipment Corp.	GCX	added 10/72; 1/75-1/94; eliminated 7/95; eliminated 1/99
AllTrans Management Services Corp.	AMSX	added 4/98; 7/2000
Alma & Jonquieres Ry. Co.	AJ	10/57-4/70; eliminated 4/74
Almalgamated Sugar Co.	ASCX	4/38-10/57; eliminated 1/59
Almanor R.R. Co.	AL	1/75-1/80; eliminated 10/89; 1/94-7/2000
Almer Railway Equipment Co.	HAX	Apr-38
Alpha Crushed Stone, Inc.	ROKX	eliminated 10/74
Alsthon Canada Inc. -- Transport	GCFX	Jul-00
Alton & Southern R.R.	AL&S	7/23-10/66
Alton and Southern Ry. Co.	ALS	1/75-7/2000
Alton R.R.	A	Jan-52
	C&A	4/38-1/52
Alton Vinegar Co.	AVCX	Apr-38
Altos Hornos de Mexico, SA de CV	AHMX	Jul-00
Altra R.R. Co.	ARRG	eliminated 10/89
Alumax of South Carolina, Inc.	ALUX	added 7/80; 1/94-7/2000
Alumina Products of Jamaica	ALJX	added 10/68; eliminated 4/69
Aluminum Co. of America	AOCX	10/57-7/2000
Aluminum Co. of Canada, Ltd.	ALCX	4/38-1/80; eliminated 5/83
Aluminum Ore Co.	AOCX	4/38-1/52
Amador Central R.R. Co.	AMC	1/75-1/94; eliminated 7/97
Amalgamated Sugar Co.	AGMX	added 7/64; 7/65-1/75
AMAX Chemical Corp.	SDCX	eliminated 1/88
AMAX Coal Co.	AMAX	added 7/88; 1/94; eliminated 7/97; 7/2000
AMAX Coal Co., a Division of AMAX, Inc.	AMAX	added 10/74; 1/75-1/80; eliminated 7/88
AMAX Phosphate, Inc.	SDCX	added 7/81
Ameren Energy Generating Co.	CIPX	Jul-00
American Agricultural Chemical Co.	AAX	4/38-7/65; eliminated 4/66
American Aniline & Extract Co.	AAEX	added 7/58; 4/61-10/66; eliminated 10/69
American Bitumuls Co.	ABCX	1/52-4/61
American Black Granite Co.	ABGX	1/52-4/61
American Boiler Works, Inc.	AMBX	Jul-00
American Bridge Division United States Steel Corp.	CWSX	added 7/64; 7/65-1/80; eliminated 10/81
American Can Co.	ANCX	added 10/69; 4/70-1/75; eliminated 7/75
American Car & Foundry Co.	ACFX	Apr-38
American Car & Foundry Co. -- temporary expiring 31Dec52	ACFX	Jan-52
American Car and Foundry Division, ACF Industries Inc. -- temporary expiring 1Apr71	RNDX	Apr-70
American Car and Foundry Division, ACF Industries Inc. -- temporary expiring 1Apr71	STOX	Apr-70
American Car Line Co.	ACLX	1/94-7/2000
American Chemical Paint Co.	AMPX	Apr-38
American Chrome & Chemicals Inc.	ACRX	added 4/80; 1/94; eliminated 7/98; 7/2000
American Cider & Vinegar Co.	ACVX	4/38-1/52
American Colloid Co.	EVEX	added 1/72; 1/75-1/80; eliminated 1/85
	LOVX	added 7/67; 1/70-1/94; eliminated 1/2000; 7/2000
	ONYX	4/70; added 7/70; 1/75-1/80; eliminated 1/85
	VOLX	7/65-10/66; eliminated 7/67
American Commercial Barge Lines, Inc.	ACBL	Jan-94
American Commercial Barge Lines, Inc. (American Commercial Barge Line Division)	ACBL	1/75-1/80
American Commercial Barge Lines, Inc. (American Commercial Barge Line Division)	ACBL	Jul-00
American Crystal Sugar Co.	ABSX	Apr-38
American Cyanamid Co.	ACHX	1/94; added 10/96; eliminated 4/97; 7/2000
	CALX	added 4/54
	CYX	4/38-1/80; eliminated 5/83
American Cyanamid Co., Calco Chemical Division	CALX	added 10/53; eliminated 4/54
American Electric Power Service Corp.	AEPX	added 4/75; 1/80-7/2000
American Electric Power Service Corp. (cars being restencilled from APWX)	AEPX	Jan-75
American Extract Co.	AECX	4/38-10/57; eliminated 10/59
American Freedom Train	AFTX	Jan-80
American International Rail Services, LLC	AIRX	Jul-00
American Minerals, Inc.	AMMX	added 10/68; eliminated 10/69
American Norit Co., Inc.	ANCX	1/94; eliminated 4/95
American Oak Leather Co.	AOLX	Apr-38
American Oil Co.	AMOX	Apr-38
	AMOX	10/57-4/70
	MPLX	10/57; eliminated 4/61
	PASX	added 4/57; 10/57-10/66; eliminated 4/68
American Petrofina Co. of Texas	APTX	added 10/58; 4/61-1/75; eliminated 1/78
	EDRX	added 10/58; eliminated 1/60
American Polymer Corp.	APYX	added 10/53
American Potash & Chemical Corp.	APMX	4/61-4/70; reporting marks changed to KMCX 1/71
American President Intermodal Co., Ltd.	APLX	added 7/86; 1/94; eliminated 4/95
American President Lines, Ltd.	APLX	added 7/80; eliminated 10/82; added 10/84; eliminated 7/86
American Rail & Marine Corp.	ARMX	added 4/84; eliminated 4/87; 1/94-7/2000
American Rail Box Car Co.	ABOX	added 7/78; eliminated 7/79
	RBOX	added 10/74; 1/75; eliminated 7/79
American Rail Heritage, Ltd. d/b/a Crab Orchard & Egyptian R.R.	COER	added 1/78; added 4/79
	COER	1/94; eliminated 1/99
American Railcar Co.	AMLX	added 1/96; added 4/96; eliminated 1/98; 7/2000
American Railcar Leasing Partners	AMNX	Jul-00
American Reduction Co. of Pittsburgh	ARDX	Apr-38
American Refrigerator Transit Co.	ABLX	added 4/62; 7/65-1/75
	AMRX	1/52-10/66; eliminated 1/69; 4/70-1/80
	AMTX	7/65-10/66; eliminated 4/67; 4/70
	ARDX	10/57; eliminated 4/61
	ART	4/38-7/2000
	ARTX	Apr-38
	BUDX	10/66; eliminated 10/67
	LOAX	7/65-1/75
	LOCX	added 1/65; 7/65-1/75
	LOJX	added 4/65; 7/65; eliminated 7/65
	MART	4/61-10/66; eliminated 10/69
	MLCX	added 7/70; 1/75-7/2000
	MODX	added 7/55; 10/57-1/75; eliminated 7/77
	MPFX	eliminated 1/65
	RMAX	10/57-4/70; eliminated 4/74; 1/75-1/80
	RMBX	7/65-4/70; eliminated 4/72
	RMDX	7/65-4/70; eliminated 4/74; 1/75-1/80; added 7/82; 1/94-7/2000
	TPLX	7/65-4/70; eliminated 10/74; 1/75-1/80
	TRAX	added 4/54; 10/57-4/70; eliminated 7/70
	WADX	added 7/55; 10/57-1/80
American Smelting & Refining Co.	ASX	4/38-7/65; eliminated 4/66
American Smelting and Refining Co.	ASTX	added 1/74; 1/75
American Soda, L.L.P.	ASHX	added 1/2001
American Steel & Wire Co.	ASWX	Apr-38
American Steel Car Lines, Inc. (Inland Car Lines, Inc.)	ASIX	Apr-38
American Steel Foundries -- temporary expiring 10Jan58	ASFX	Oct-57
American Steel Foundries -- temporary expiring 15Oct61	ASFX	Apr-61
American Steel Foundries -- temporary expiring 31Dec52	ASFX	Jan-52
American Steel Foundries, Inc.	ASFX	7/65-10/66
American Steel Foundries, Inc. -- temporary expiring 1Apr71	ASFX	4/70; eliminated 10/72
American Steel Foundries, Inc. (Marks temporarily assigned for other than tank cars; marks expire 1Apr75)	ASFX	Jan-75
American Steel Foundries, Inc. (Marks temporarily assigned for other than tank cars; marks expire 1Jan81)	ASFX	Jan-80
American Sugar Co.	ASRX	7/65-4/70
American Sugar Refining Co.	ASRX	4/38-4/61
American Synthetic Rubber Corp.	ASBX	added 4/61; 4/61-4/70; eliminated 7/74
American Tar & Chemical Co.	ATDX	Apr-38
American Tar Co.	ATCX	Apr-38
American Tar Products Co., Inc. (Koppers Co.)	ATPX	Apr-38
American Turpentine & Tar Co., Ltd.	ATTX	4/38-10/57; eliminated 10/60
American Viscose Corp.	AVCX	10/57-4/61
	AVX	Jan-52
American Viscose Corp., Sylvania Division	SYLX	Jan-52
American Zinc & Chemical Co.	AZCX	Apr-38
American Zinc Co.	AZLX	added 4/67; 4/70; eliminated 10/70
American Zinc Co. of Illinois	AZLX	added 4/65
	AZLX	10/66; eliminated 4/67
	AZX	1/52-10/57; eliminated 7/59
American Zinc, Lead and Smelting Co.	AZLX	Jul-65
AmeriGas Propane L.P.	AGTX	added 10/96; eliminated 7/99
	PGRX	added 10/95; eliminated 4/98; 7/2000
	TRPX	added 10/95; eliminated 4/98; 7/2000
Ameropan Railcar Corp.	AMRX	added 1/90; 1/94; eliminated 10/97
AMG Resources Corp.	AMGX	added 7/88; 1/94-7/2000
AMG Resources Corporation	VMMX	added 7/88; 1/94
Amherst Barge Co.	AMBX	added 1/60
Amherst Industries, Inc.	AMBX	4/61-1/80; eliminated 10/90
	AMHR	added 10/82; eliminated 7/84
Amoco Canada Petroleum Co., Ltd.	ACPX	added 1/81; eliminated 1/93
Amoco Chemical Co.	AMCX	Jan-94
Amoco Chemicals Corp.	AMCX	added 4/68; 4/70-1/80
Amoco Oil Co.	ACPX	added 1/98; 7/2000
	AMOX	1/75-7/2000
	ARPX	added 7/2000; 7/2000
	RCOX	added 7/2000; 7/2000
Ampacet Corp.	AATX	added 10/78; 1/80; eliminated 10/94; added 10/96; eliminated 4/97; 7/2000
Amstar Corp.	ASRX	1/75-1/80; eliminated 4/89
Amstar Sugar Co.	ASRX	added 4/89; eliminated 10/92
Amulco Asphalt Co. of Texas	AAKX	Apr-38
Amway Corp.	AMWX	added 4/82; eliminated 1/88
Anaconda Copper Mining Co.	ANAX	Jan-52
Anaconda Minerals Co.--Division of Atlantic Richfield Co.	ARRX	added 7/82; eliminated 4/88
Anbel Corp.	ANBX	Jan-94
Anchor Gas and Fuel Co., Inc.	AGFX	added 10/82; eliminated 7/87
Anchor Gas and Fuel Transport, Inc.	AGFX	added 1/62; 7/65-1/80; eliminated 10/82
Anchor Gasoline Corp.	AGAX	added 4/54; 10/57-10/66; eliminated 1/67
Anchor Glass Container	BDCX	added 10/89; 1/94; eliminated 10/95; 7/2000
Anchor Petroleum Co.	ANPX	1/52-10/57; eliminated 4/61
Ancor International Corp.	AICX	added 7/65; 7/65-1/80; eliminated 1/83
Andalusia & Conecuh R.R. Co., Inc.	ACRC	eliminated 10/90; 1/94
Andersen and Kindt Gas, Inc.	AKGX	added 1/72; eliminated 7/74
Anderson Columbia Co., Inc.	ACXX	Jul-00
Anderson Elevator Co.	AEX	10/57-4/61
Anderson-Pritchard Oil Corp.	APOX	added 10/53; 10/57-4/61
	KOTX	added 10/53
Andesite Rock Co.	ANDX	Jul-00
Andrew Merrilees Ltd.	ADSX	Jul-00
Andrews Gas Liquids Service	AGLX	1/80; eliminated 10/84
Andrews Petroleum, Inc.	AGLX	added 10/84; 1/94-7/2000
Andy Equipment Inc.	RJCX	Jan-75
Angelina & Neches River R.R. Co.	ANR	1/75-7/2000
Anheuser-Busch, Inc.	ABIX	10/57-7/65; eliminated 10/65; added 1/74; 1/75; eliminated 7/78; 1/80-1/94; eliminated 10/96; 7/2000
Animal By-Products Corp.	ABPX	added 4/67; 4/70; eliminated 10/71
Ann Arbor R.R. Co.	AA	4/38-1/75; eliminated 1/78
	AA	added 1/89; 1/94-7/2000
Ann Arbor R.R. System, Michigan Interstate Ry. Co., Operator	AA	added 1/78; 1/80
Ann Arbor R.R. System, Michigan Interstate Ry. Co., Operator-in-Reorganization	AA	eliminated 4/88
Ann Arbor R.R., Michigan Interstate Ry. Co., Operator-in-Reorganization	AA	added 4/88
Ann Arbor R.R., Michigan Interstate Ry. Co., Operator-in-Reorganization (W. Clark Durant, Ill, Trustee)	AA	eliminated 1/89
Ansbacher-Hagerstown Chemical Corp.	AHCX	Apr-38
Ansco Investment Co.	ANSX	Jul-00
Ansul Chemical Co.	ACCX	4/38-4/61; eliminated 7/64
Anthony & Northern Ry. Co.	AN&N	23-Jul
Anthracite Ry., Inc.	ATRW	added 10/83; eliminated 10/89
Antrim Iron Co.	AIX	Apr-38
Apache Powder Co.	APHX	4/38-1/52; eliminated 4/54
Apache Ry. Co.	APA	1/75-7/2000
Apalachicola Northern R.R. Co.	AN	7/23-7/2000
Apco Oil Corp.	APOX	7/65-4/70; eliminated 1/74
Apex Oil Co.	APEX	Apr-38
	APEX	eliminated 7/60
Apex Oil Co. (Chas. W. Mintz)	APEX	1/52-10/57
Apex Tank Car Line	APEX	4/61-7/2000
	PGSX	7/65-1/80
APL Land Transport Services, Inc.	APLX	added 4/95; 7/2000; eliminated 10/2000
Apollo Metals, Inc.	AMIX	4/70-1/75; eliminated 7/79
Appalachian Electric Power Co.	AEPX	1/52-10/57; eliminated 10/58
Appalachian Power Co.	AEPX	added 10/58; 4/61-4/70; eliminated 4/75
	APWX	added 10/74; 1/75-7/2000
Appanoose County Community R.R., Inc.	APNC	added 1/85; 1/94-7/2000
Applied Chemicals Division, Mobley Co., Inc.	MCIX	Jan-80
Aqua-Chem, Inc., Cleaver Brooks Division	AQCX	added 1/69; 4/70-7/2000
Arcade & Attica R.R. Corp.	ARA	4/70; eliminated 11/73; 1/75-7/2000
Arcadian Corp.	AHCX	added 10/84; 1/94-7/2000
	CNCX	added 7/90; 1/94
Arch Mineral Corp.	ARHX	added 7/90; 1/94; eliminated 10/97; 7/2000
Arch of Kentucky, Inc.	URDX	added 4/85; 1/94; eliminated 4/94; 7/2000
ARCO Chemical Co.	KCIX	added 10/82; 1/94; eliminated 4/97
	SKCX	added 10/82; 1/94-7/2000
Arco Coal Co.--Division of Atlantic Richfield Co.	ARRX	added 7/79; 1/80; eliminated 7/82
ARCO Petroleum Co.-Division of Atlantic Richfield Co.	ARPX	added 1/80; 1/80; eliminated 4/80
Arco Petroleum Products Co., Division of Atlantic Richfield Co.	ARPX	added 4/80; eliminated 1/89
ARCO Polymers, Inc.	KCIX	1/80; eliminated 10/82
	SKCX	1/75-1/80; eliminated 10/82
Arco Products Co.	ARPX	eliminated 7/2000
	RCOX	eliminated 7/2000
Arco Products Co., Division of Atlantic Richfield Co.	ARPX	added 1/89; 1/94
	RCOX	added 10/91; 1/94
ARCO/Polymers, Inc.	KCIX	Jan-75
Aristech Chemical Corp.	ARSX	1/94-7/2000
Aristech Chemical Corp.	USSX	added 7/87; eliminated 7/88
Arizona & California R.R. Co.	ARZC	added 10/91; 1/94; added 4/94; 7/2000
Arizona Central R.R., Inc.	AZCR	added 7/89; 1/94-7/2000
Arizona Eastern R.R. Co.	AE	23-Jul
Arizona Eastern Ry. Co.	AZER	added 1/89; 1/94; eliminated 7/94; 7/2000
Arizona Electric Power Cooperative, Inc.	AZEX	added 4/78; 1/80-7/2000
Arizona Public Service Co.	APSX	Jul-00
Arizona Rail Car Inc.	ARCX	1/94-7/2000
Arizona Railway Museum	AZMX	Jul-00
Arizona Southern R.R. Co.	AZS	23-Jul
Arkansas & Louisiana Missouri Ry. Co.	A&LM	23-Jul
	ALM	4/38-1/80; eliminated 4/92
Arkansas & Missouri R.R. Co.	AM	added 10/86; 1/94-7/2000
Arkansas Central R.R. Co.	AKC	23-Jul
Arkansas Chemicals, Inc.	ACIX	added 4/61; 4/61-1/94; eliminated 1/98
Arkansas Fuel Oil Co.	ANGX	4/38-1/52
Arkansas Fuel Oil Corp.	AFOX	added 4/57; 10/57; 4/61; eliminated 1/62
	ANGX	Oct-57
	NOX	added 10/58; 4/61; eliminated 1/62
Arkansas Louisiana & Mississippi R.R. Co.	ADN	added 10/96; 7/2000
	ALM	added 4/92; 1/94-7/2000
	AMC	added 7/97; 7/2000
Arkansas Midland R.R. Co., Inc.	AKMD	added 7/92; 1/94; added 4/95; eliminated 7/95
	AKMD	eliminated 7/96
	AKMD	added 4/97; 7/2000
Arkansas Power & Light Co.	ETRX	added 1/96; 7/2000
Arkansas-Oklahoma R.R., Inc.	AOK	added 7/96; 7/2000
Ark-Mo Plant Food Co., Inc.	AMPX	1/52-10/57; added 7/58; 4/61-7/65; eliminated 10/65
Armco Steel Co., L.P.	ASCX	added 7/91; 1/94; eliminated 10/94; 7/2000
Armco Steel Corp.	ARMX	1/52-10/57; eliminated 1/59
Armour and Co.	ACHX	7/65-10/66
	ARLX	added 7/69; 4/70-1/75; eliminated 1/78
Armour Car Lines	ACHX	eliminated 10/68
	ARLX	eliminated 7/69
	ASEX	eliminated 10/58
	ATLX	eliminated 10/58
	SBCX	added 1/60; 4/61
Armour Car Lines (Armour Refrigerator Line)	ARLX	4/38-7/65
Armour Refrigerator Line	ARLX	Oct-66
Armour Stock Express (Armour Car Lines)	ASEX	Apr-38
Armour Stock Express (General American Transportation Corp.)	ASEX	Oct-66
Armour Tank Line (Armour Car Lines)	ATLX	Apr-38
Armour Tank Line (General American Transportation Corp.)	ATLX	Oct-66
Armstrong Cork Co.	ACKX	Apr-38
	ACKX	eliminated 1/66
Armstrong Cork Co., Linoleum Division	ACKX	1/52-7/65
Arms-Yager Railway Car Co.	AYRX	Apr-38
Arnold Transit	ATCO	1/75-1/80
Aroostook Valley R.R. Co.	AVL	7/23-1/80
	AVL	eliminated 10/94; 7/2000
Arrendadora de Carros de Ferrocarril del Atlantico, S.A.	AAMX	added 1/75; 1/75-1/80; eliminated 4/85
Arrendadora Nacional de Carros de Ferrocarril, S.A.	GAMX	added 4/87; eliminated 4/91
Arrendadora Nacional de Carros de Ferrocarril, S.A. de C.V.	GAMX	added 4/91; 1/94-7/2000
Arrendadora Sipco, S.A. de C.V.	SIPX	added 7/94; 7/2000
Arro Oil & Refining Co.	AROX	Apr-38
Arrow Industries, Inc.	CAAX	added 4/90; eliminated 10/92
Artemus-Jellico R.R.	AJR	4/38-1/52
Arthur Equipment Co.	HTCX	added 10/71
Asarco Inc.	ASTX	1/80-7/2000
Asarco Mexicana, S.A.	ASMX	added 10/65; 10/66-1/75; eliminated 7/75
Asbestos & Danville	ASDA	1/75-1/80
Asea Brown Boveri, Inc.	ABWX	added 7/90; 1/94-7/2000
	TETX	added 7/90; eliminated 7/92
Ash Grove Cement Co.	ASGX	Jul-00
Ashland Chemical Co., Division of Ashland Oil & Refining Co.	CCNX	added 4/68; eliminated 10/68
Ashland Chemical Co., Division of Ashland Oil & Refining Co., Carbon Black & Synthetic Rubber Division	UCBX	added 1/69; 4/70; eliminated 4/71
Ashland Chemical Co., Division of Ashland Oil, Inc.	UCBX	Jan-75
	CCNX	added 4/70; 4/70-1/75
Ashland Chemical Co., Division of Ashland Oil Inc., Carbon Black & Synthetic Rubber Division	UCBX	added 4/71
Ashland Oil & Refining Co.	CCNX	added 10/68; eliminated 4/70
	LARX	7/65-10/66; eliminated 4/70
	PPIX	added 7/68
Ashland Petroleum Co., Division of Ashland Oil, Inc.	AOIX	added 4/95; eliminated 1/99
Ashland Ry.	ABN	4/38-1/52
Ashland Ry., Inc.	ASRY	added 7/86; eliminated 10/87; eliminated 1/92; added 1/94; 7/2000
Ashley, Drew & Northern Ry. Co.	ADN	1/75-1/94; eliminated 10/96
Ashtabula Carson Jefferson R.R. Co., Inc.	ACJR	added 10/87; 1/94-7/2000
Asplundh Tree Expert Co., R.R. Division	ATEX	1/94-7/2000
Associated Cooperatives, Inc.	ACX	10/57-4/61
Associated Electric Cooperative, Inc.	AECX	added 10/94; 7/2000
	KRPX	Jan-80
Associated Electric Cooperative, Inc. (captive service)	KRPX	Jan-94
Associated Metals & Minerals Corp.	LSTX	Apr-70
Associated Oil Co. (Tide Water Associated Oil Co.)	AOX	Apr-38
Associated Railcar, Inc.	ARGX	added 10/84; eliminated 1/85; 1/94; eliminated 4/96; 7/2000
Association of American Railroads	AAR	Jul-00
Astaris LLC	AFSX	7/2000; added 10/2000
AT&L R.R. Co.	ATLT	1/94-7/2000; eliminated 4/2001
Atchison Bridge Co., Inc.	BIX	added 7/56; 10/57-4/70; eliminated 10/72
Atchison, Topeka & Santa Fe Ry.	ATSF	4/38-1/94; eliminated 7/97
	SFRA	7/65-1/75
	SFRB	10/57-1/80; eliminated 1/86
	SFRE	7/65-1/80; eliminated 1/86
	SFRF	10/66-1/75
	SFRM	7/65-1/75
	SFRP	7/65-1/80; eliminated 1/81
Atchison, Topeka & Santa Fe Ry. Co.	SFLC	added 7/77; 1/80-1/94; eliminated 7/97
	SFRC	4/61-1/94; eliminated 7/97
	SFRD	4/38-1/80; eliminated 7/80
Atel Capital Equipment Fund 7, L.P.	AFCX	added 1/99; 7/2000
ATEL Leasing Corp.	ATGX	added 10/96; 7/2000
Athens Fuel & Refining Co., Inc.	AORX	Jan-52
Atlanta & Saint Andrews Bay Ry. Co.	ASAB	10/57-1/94; eliminated 4/94
Atlanta & St. Andrews Bay Ry.	A&SA	7/23-1/52
Atlanta & West Point R.R. Co.	A&WP	4/38-10/66
	AWP	1/75-1/80; eliminated 1/83
Atlanta Chapter--National Railway Historical Society, Inc.	SMRX	Jul-00
Atlantic & North Carolina R.R.	ANC	Apr-38
Atlantic and Danville Ry.	AD	10/57-4/61
Atlantic and Danville Ry. Co. (Norfolk, Franklin and Danville Ry. Co.)	AD	Oct-66
Atlantic and East Carolina Ry. Co.	AEC	1/52-1/75; eliminated 4/78; 1/80-7/2000
Atlantic and Gulf R.R. Co., Inc.	AGLF	added 7/91; 1/94; eliminated 7/99
Atlantic and Western Ry. Co.	ATW	1/75-1/80; eliminated 1/92
Atlantic and Western Ry., L.P.	ATW	added 4/92; 1/94-7/2000
Atlantic Cement Co., Inc.	ACEX	added 7/73; 1/75-1/80; eliminated 4/86
Atlantic Coast Line R.R.	WIF	7/65-4/70
Atlantic Coast Line R.R. Co.	ACL	7/23-4/70
Atlantic of New York, Inc.	AWDX	added 10/96; eliminated 7/98; 7/2000
Atlantic Richfield Co.	ROX	added 7/66; 10/66-4/70; eliminated 1/72
Atlantic Sugar Refineries Co. Ltd.	ATSX	10/57-4/70; eliminated 10/71
Atlantic Terminals Inc.	WTCX	Jan-75
Atlas Chemical Co.	ACHX	1/52; eliminated 7/56
Atlas Chemical Industries, Inc.	APCX	7/65-4/70; reporting marks changed to ICIX 4/72; eliminated 4/72
Atlas Iron Processors, Inc.	AIPX	added 7/94; eliminated 7/97; 7/2000
Atlas Machine & Iron Works, Inc.	ATLX	added 7/80; eliminated 1/86; 1/94-7/2000
Atlas Pipeline Corp.	SPAX	Apr-38
Atlas Powder Co.	APCX	4/38-4/61
ATW Ry., L.P.	ATW	added 1/92; eliminated 4/92
Augusta & Summerville R.R. Co.	AUS	1/75-1/80
Augusta R.R. Co.	AUG	1/75-1/80; added 7/81; eliminated 10/86; 1/94-7/2000
Augusta Southern R.R.	AUS	23-Jul
Aurora Cooperative Elevator Co.	ACOX	added 10/70; 1/75-1/80; eliminated 1/90
Aurora Elgin & Fox River Electric	AEFR	1/94-7/2000
Austin Powder Co.	AUPX	4/38-4/70; eliminated 1/75
Austin R.R. (Austin & Northwestern R.R. Co.)	AUNW	added 1/87; 1/94; eliminated 7/96
AVCO Aerostructures Division	AVCX	added 4/71; 1/75-1/80; eliminated 10/89
Avondale Shipyards, Inc.	ASYX	added 1/75; 1/75-1/80; eliminated 1/85
Aycock-Lindsey Corp.	AKOX	Apr-38
Azcon Corp.	AZCX	added 10/96; eliminated 7/98; 7/2000