Please contact one of the committee members if errors or omissions are noted in the registry. Entries are listed alphabetically by supplier.
| Commodity | Supplier’s Name | Facility | Audit Date | Expiration | Auditor |
| New and reconditioned switch components | J Manufacturing | Grass Valley, CA | 3/01/2005 | 3/01/2008 | IQC |
| Remanufactured Electromatic and Hydraulic Vibrator Units | JER Overhaul, Inc | Arcola, IL | 3/1/2005 | 3/01/2008 | Simpson |
| Manufacturer of axles A15 | Jinxi Axle Company Ltd. | Taiyuan, Shanxi, P.R. China | 7/08/2005 | 7/08/2008 | AAR |
| A-15 | Joint Stock Company Ural Forge | Cherbarkful, Russia | 7/8/2005 | 7/8/2008 | AAR |
| Manufacturer of Axles | JSC Lugcentro Kuz | Lugansk, Ukraine | 7/8/2005 | 7/8/2008 | AAR |
| A15 | JSE Ural Forge | Cherbarkful, Russia | 6/21/2004 | 6/21/2007 | AAR |
| New mfg. of locomotive traction motor components | K&G Machine Co. | Euclid, OH | 7/8/2005 | 7/8/2008 | IQC |
| Locomotive new & reconditioned electronic-mechanical: new & used loco parts | K&L Electronics Sales and Service Inc. | Searcy, AK | 6/9/2004 | 6/9/2007 | IQC |
| Wheel & axle shop | Kawasaki Heavy Industries, LTD | Hyogo-Ku, Kobe, Japan | 7/8/2003 | 7/8/2006 | AAR |
| New cast quadshear yoke | Keokuk Steel Casting Company | Keokuk, IA | 5/20/2004 | 5/20/2007 | IQC |
| New rail spikes | Keystone Spikes Corp. | Lebanon, PA | 5/1/2003 | 5/1/2006 | CRQS |
| Hand brakes | Klasing Industries | Joliet, IL | 2/24/2004 | 2/24/2007 | HS |
| New Treated Wood Products | Koppers, Inc | Florence, SC | 3/1/2005 | 3/1/2008 | ISO |
| Crossties and switch ties | Koppers, Inc. | Salem, VA | 6/21/2004 | 6/21/2007 | AAR |
| Manufacture new ties, manufacture track panels | Koppers, Inc. | Sommervlle, TX | 9/3/2003 | 9/3/2006 | CRQS |
| Manufacturer of ties | Koppers, Inc. | Montgomery, AL | 2/24/2004 | 2/24/2007 | AAR |
| Manufacturer of Frogs and Switches | Koppers, Inc-Alorton Plant | Alorton, IL | 3/1/2005 | 3/1/2008 | AAR |
| New ties and track panels | Koppers Inc. – Guthrie Plant | Guthrie, KY | 8/13/2003 | 8/13/2006 | CRQS |
| Manufacturer of wheels & axles | Kriukovsky Car Building Plant | Kremenchug, Ukraine | 2/24/2004 | 2/24/2007 | AAR |
| Manufacturer of concrete ties | KSA | Sciotoville, OH | 8/20/2003 | 8/20/2006 | CRQS |
| New bolts, nuts, and screw spikes | Lewis Bolt & Nut Company | La Junta, CO | 7/03/2003 | 7/03/2006 | AAR |
| Manufacturer of wheels and axles | Lucchini | Via G. Paglia 45. Italy | 2/24/2004 | 2/24/2007 | AAR |
| Manufacturer of wheels and axles A13 & A15 | Lucchini Sidermeacanica S.P.A. | Paylia, Italy | 7/08/2005 | 7/08/2008 | AAR |
| Manufacturer of wheels | MA Steel International Trade and Economic Group | Maanshan City, Anhui Province, China | 6/10/2004 | 6/10/2007 | AAR |
| New manufacturer wheel | Maanshan Iron & Steel Company | Maanshan City, Anhui Province, China | 8/27/2003 | 8/27/2006 | AAR |
| New centerplates | Maritime Steel and Foundries | New Glasgow, Nova Scotia, Canada | 7/24/2004 | 7/24/2007 | CRQS |
| AREMA railroad ballast | Martin Marietta Materials, Inc. | Augusta, GA | 7/07/2005 | 7/08/2008 | CRQS |
| AREMA Railroad Ballast | Martin Marietta Materials, Inc. | Junction City, GA | 7/8/2005 | 7/8/2008 | CRQS |
| AREMA railroad ballast | Maryland Materials, Inc. | North East, MD | 5/1/2003 | 5/1/2006 | CRQS |
| Manufacturer frieght knuckles, yokes, loco knuckles, reconditioner freight/loco draft gear | McConway & Torley Group | Pittsburgh, PA | 5/1/2003 | 5/1/2006 | AAR |
| Manufacturer of brake shoe keys, brake beam guides & assorted wear plates & liners | Melampy Manufacturing Company | Gibsonia, PA | 7/08/2005 | 7/08/2008 | IQC |
| Reconditioning of couplers, yokes and castings | Meridian Rail Services | Cicero, IL | 2/24/2004 | 2/24/2007 | AAR |
| Manufacturer of switches, frogs and panel turnouts | Meridian Rail Track Products Division | Newton, KS | 2/24/2004 | 2/24/2007 | AAR |
| Reconditioner of couplers, yokes, and brake beams | Meridian Wheel Services | Cicero, IL | 2/3/2003 | 2/3/2006 | AAR |
| Freight car repair, air brake repair | Meridian Wheel Services | Ceylon Tlalnepantla, Mexico | 9/23/2003 | 9/23/2006 | IQC |
| Wheel & Axle Shop 1,4,5,9 | Meridian Rail Services Corp. | Corsicana, TX | 7/8/2005 | 7/8/2008 | AAR |
| New or Remanufactured Wheel & Axle Shop | Meridian Rail Wheel Services | San Bernadino, CA | 7/8/2005 | 7/8/2008 | AAR |
| Wheel & axle shop | Mexico Meridian Rail Services S.A. | Tlalnepantla, MX | 2/3/2003 | 2/3/2006 | AAR |
| New bearings | MIBA Bearings USLLC | McConnelsville, OH | 10/26/2004 | 10/26/2007 | AAR |
| Reconditioned locomotive engines | Midwest Locomotive Services | Atwater, MN | 2/24/2004 | 2/24/2007 | HS |
| New Traction Motor Bearings and Loco Components | Miller-Felpax Corporation | Winona, MN | 3/1/2005 | 3/1/2008 | Cummings |
| Manufacturer & reconditioner of freight draft gears | Miner Enterprises, Inc. | Geneva, IL | 8/15/2002 | 8/15/2005 | AAR |
| Manufacturer of freight and locomotive side frames and bolsters | MIS Simplex Castings LTD. | Uria Industrial Estat Raipur Chhartrisgarth, India | 2/24/2004 | 2/24/2007 | AAR |
| Manufacturer of wheels & axles | MWLBrasil Rodas & Eixos LTDA | Cagapava, SP, Brazil | 9/17/2004 | 9/17/2007 | AAR |
| Manufacturer & reconditioner loco. radiator fans and blower motors | Nadi Airtechnics Private LTD | Chennai, India | 2/24/2004 | 2/24/2007 | AAR |
| Manufacturer of freight cars, wheel and axle shop | National Steel Car | Hamilton, Ontario, Canada | 8/20/2003 | 8/20/2006 | AAR |
| A1 | NEI Ltd. Brenco Inc | Jaipur, India | 7/8/2005 | 7/8/2008 | AAR |
| Reconditioned locomotive crankshafts | NF Crankshaft | Warren, PA | 2/3/2003 | 2/3/2006 | IQC |
| New journal roller bearings | Nipponseiko K.K. (NSK) | Fujisawa, Kanagawa, Japan | 10/8/2003 | 10/8/2006 | AAR |
| New a-13 | Nizhnedneprovsky Tube Rolling Plant | Dnepropetrovsk, Ukraine | 3/1/2005 | 3/1/2008 | AAR |
| Manufacturer of railroad track maintenance machines | Nordco, Inc. | Milwaukee, WI | 8/20/2003 | 8/20/2006 | CRQS |
| New & remanufactured track maint. equip. | Nordco, Inc. | Oshawa, Ontario, Canada | 7/20/2004 | 7/20/2007 | CRQS |
| Reconditioner of locomotives and locomotive components | Norfolk Southern Corp – Juniata Locomotive Shop | Altoona, PA | 10/3/2003 | 10/3/2006 | AAR |
| Freight car repairs of over 85 hours | Northwest Freight Car Repairs Corp | Longview, WA | 8/31/2004 | 8/31/2007 | AAR |
| Manufacturer of journal roller bearings | NTN Corporation | Kuwana Mie, Japan | 2/24/2004 | 2/24/2007 | AAR |
