59th Street Subdivision (R)  |
| A&WP Subdivision (O) |
| Abbeville Subdivision (O) |
| Aberdeen Subdivision (O) |
| Achan Subdivision (O) |
| Agricola Spur (O) |
| Albany District (R) |
| Alleghany Subdivision (O) |
| Altenheim Subdivision (O) |
| Amboy Secondary (R) |
| Andrews Subdivision (O) |
| Appalachia District (R) |
| Atlanta South District (R) |
| Atlanta Terminal (O) |
| Atlantic City Line (R) |
| Auburndale Subdivision (O) |
| Augusta Subdivision (O) |
| Autauga Creek District (R) |
| Bainbridge Subdivision (R,O) |
| Baldwinsville Subdivision (O) |
| Baltimore Terminal (O) |
| Barr Subdivision (O) |
| Bay Ridge Branch (R) |
| Beesleys Point Secondary (R) |
| Bellwood Subdivision (O) |
| Belt Line Branch (O) |
| Belton Subdivision (O) |
| Berkshire Subdivision (O) |
| Big Coal Subdivision (O) |
| Big Marsh Fork (O) |
| Big Sandy Extension (O) |
| Big Sandy Subdivision (O) |
| Birmingham Mineral Huntsville #1 (O) |
| Birmingham Mineral Subdivision (O) |
| Blue Island Subdivision (O) |
| Blue Ridge Subdivision (O) |
| Bone Valley Subdivision (O) |
| Bordentown Secondary (R) |
| Boston Subdivision (O,R) |
| Boyles Terminal (O) |
| Brewster Subdivision (O) |
| Bridgeport Subdivision (O) |
| Brooker Subdivision (O) |
| Brooksville Subdivision (O) |
| Brown Running Track (O) |
| Bruceton Subdivision (O) |
| Brunswick (CSXT) Subdivision (O) |
| Buffalo Consolidated Terminal (R) |
| Buffalo Subdivision (O) |
| Buffalo Terminal (O) |
| CC Subdivision (O) |
| CED (O) |
| CH Subdivision (O) |
| CL&W Subdivision (O) |
| CN&L Subdivision (O) |
| CV Subdivision (O) |
| Cabin Creek Subdivision (O) |
| Callahan Subdivision (O) |
| Camak (CSXT) Subdivision (O) |
| Capital Alexandria Extension (O) |
| Capital Subdivision (O) |
| Carey Subdivision (R) |
| Carman Subdivision (O) |
| Carrothers Secondary (O) |
| Carters Subdivision (O) |
| Cartersville Subdivision (O) |
| Castleton Subdivision (O) |
| Charleston District Charleston to Columbia (R) |
| Charleston District Hasskamp to Kingville (R) |
| Charleston Subdivision (O) |
| Charlotte Subdivision (O) |
| Chattanooga Subdivision (O) |
| Chemical Coast Secondary (R) |
| Chester Secondary (R) |
| Chicago (BNSF) Subdivision (R) |
| Chicago Line (R) |
| Chillicothe Subdivision (R) |
| Cincinnati Subdivision (O) |
| Cincinnati Terminal (O) |
| Clearwater Subdivision (O) |
| Cleveland (CSXT) Subdivision (O) |
| Cleveland Short Line (O) |
| Cleveland Terminal (O) |
| Coal River (O) |
| Coal Run Subdivision (O) |
| Columbia District Columbia to Augusta (R) |
| Columbia Subdivision (O) |
| Columbus Line (O) |
| Columbus Subdivision (O) |
| Concurrent (MBTA) Subdivision (R,O) |
| Cow Creek Branch (O) |
| Crawfordsville Branch (O) |
| Creston Subdivision (O) |
| Cross Subdivision (O) |
| Cumberland Subdivision (O) |
| Cumberland Terminal (O) |
| Curtis Bay Branch (O) |
| Danville District Greensboro to Fetner (R) |
| Dayton District (R) |
| Deerhaven Subdivision (O) |
| Delair Branch (R) |
| Detroit District (R) |
| Detroit Line (R) |
| Detroit Subdivision (O) |
| Dothan (CSXT) Subdivision (O) |
| Dothan Subdivision (O) |
| Duval Yard Subdivision (O) |
| E&BV Subdivision (O) |
| EK Subdivision (O) |
| East Carolina Bus Unit Goldsboro to Fetner (R) |
| East Carolina Bus Unit Lee Creek to Chocowinity (R) |
| Eastover Subdivision (O) |
| Eatonton District (R) |
| Elsdon Subdivision (O,R) |
| Erie West Subdivision (O) |
| Etowah Subdivision (O) |
| Evansville Terminal (O) |
| Export Lead (O) |
| Fairmont Subdivision (O) |
| Fairmount (MBTA) Subdivision (R) |
| Fitchburg (CSXT) Subdivision (O) |
| Fitzgerald Subdivision (O) |
| Flint Subdivision (R) |
| Framingham Subdivision (O) |
| Frankfort Branch-District (R) |
| Frankfort Secondary (O) |
| Franklin (MBTA) Subdivision (R,O) |
| Frederick Branch (O) |
| Fremont (CSXT) Subdivision (O) |
| Fulton Subdivision (R) |
| G&E Subdivision (O) |
| Gainesville-Midland Subdivision (O) |
| Gardner Subdivision (R) |
| Garrett Subdivision (O) |
| Gauley Subdivision (O) |
| Geneva Subdivision (R) |
| Georges Creek Subdivision (O) |
| Georgetown Subdivision (O) |
| Georgia Subdivision (O) |
| Grand Rapids Subdivision (O) |
| Grand Rapids Terminal (O) |
| Greenville Subdivision (R) |
| Greenwich Subdivision (O) |
| Griffin District (R) |
| H Line (R) |
| Hamlet Subdivision (O) |
| Hamlet Terminal (O) |
| Hanover Subdivision (O) |
| Harlem Line (R) |
| Harlem River Lead (O) |
| Harrisburg Line (R) |
| Hartford Line (R) |
| Hellgate Line (R,O) |
| Henderson Subdivision (O) |
| Herbert Subdivision (O) |
| Homestead Subdivision (O) |
| Hopewell Subdivision (O) |
| Hudson Line (R,O) |
| Hudson River Lead (O) |
| Hunter Connector (R) |
| Huntington District (R) |
| IHB Main Line (R) |
| Illinois Subdivision (O) |
| Illinois Transfer Subdivision (R) |
| Indiana (CSXT) Subdivision (O) |
| Indianapolis (CSXT) Subdivision (O) |
| Indianapolis Belt (O) |
| Indianapolis Line (O) |
| Indianapolis Terminal (O) |
| Inman Park Belt (O) |
| Island Creek Subdivision (O) |
| Jacksonville Terminal (O) |
| James River Subdivision (O) |
| Jesup Subdivision (O) |
| KD Subdivision (O) |
| Kanawha Subdivision (O) |
| Kankakee Branch (R) |
| Kankakee Line (R) |
| Kenton Line Subdivision (R) |
| Kenwood Running Track (R) |
| Keystone Subdivision (O) |
| Kingsland Subdivision (O) |
| Kingsport Subdivision (O) |
| Knoxville District Coster Line (R) |
| Knoxville District K&A Line (R) |
| Knoxville District Middlesboro Line (R) |
| Knoxville District Oakdale Line (R) |
| Knoxville District West End (R) |
| LCL Subdivision (O) |
| LH&STL Subdivision (O) |
| Lafayette (BNSF) Subdivision (R) |
| Lafayette District (R) |
| Lake Erie District (R) |
| Lakeland Subdivision (O) |
| Lakeland Winston to Prairie Subdivision (O) |
| Lakeshore Subdivision (O) |
| Landover Subdivision (O) |
| Lane Subdivision (O) |
| Laurel Fork (O) |
| Lehigh Line (R) |
| Lincoln Secondary (R) |
| Lineville Subdivision (O) |
| Lockport Subdivision (O) |
| Logan & Southern Subdivision (O) |
| Logan Subdivision (O) |
| Lookout Lead (O) |
| Louisville District (NS) Subdivision (R) |
| Louisville Terminal (O) |
| Loveridge Secondary (R) |
| Lurgan Branch (R) |
| Lurgan Subdivision (O) |
| M&M Subdivision (O) |
| MacArthur Bridge Subdivision (R) |
| Macon District (R) |
| Main Line (R) |
| Main Line (R) |
| Main Line (NYSW) (R) |
| Main Line (SEPA) (R) |
| Main Subdivision (O) |
| Mainline (O) |
| Manchester Subdivision (O) |
| Manor Branch (R) |
| Matt Branch (R) |
| Matteson Subdivision (R) |
| McCormick Subdivision (O) |
| Meadville Line (R) |
| Memphis (CSXT) Subdivision (O) |
| Memphis (UP) Subdivision (R) |
| Memphis District East End (R) |
| Memphis Terminal (O) |
| Metropolitan Subdivision (O) |
| Miami (CXST) Subdivision (O) |
| Miami (TCCX) Subdivision (R) |
| Michigan Line (R) |
| Middleborough (MBTA) Subdivision (O) |
| Middletown Subdivision (O) |
| Miracle Run Branch (R) |
| Mohawk Subdivision (O) |
| Mon (CSXT) Subdivision (O) |
| Mon Line (NS) (R) |
| Monon Subdivision (O) |
| Monroe Subdivision (O) |
| Montreal Subdivision (O) |
| Moores District (R) |
| Morristown Line (R) |
| Morrisville Connecting Trk (R) |
| Morrisville Line (CSAO) (R) |
| Morrisville Line (NS) (R) |
| Mountain Subdivision (O) |
| Mt Clare Branch (O) |
| Mt Vernon Subdivision (R) |
| Mt. Victory Subdivision (O) |
| NO&M Subdivision (O) |
| Nahunta Subdivision (O) |
| Nashville (CSXT) Subdivision (O) |
| Nashville Terminal (O) |
| National Docks Branch (R) |
| Neshaminy Line (R) |
| New Castle District (R) |
| New Castle Subdivision (O) |
| New Haven Line (R) |
| New Orleans Terminal (R) |
| New River Subdivision (O) |
| New Rock Subdivision (O) |
| Niagara Branch (O) |
| Norlina Subdivision (O) |
| Norristown Line (NS) (R) |
| North End Subdivision (O) |
| North Jersey Coast Line (R) |
| North Wateree Spur (O) |
| North Yard Branch (R) |
| Northeast Corridor (CT,MA,RI) (R) |
| Northeast Corridor (DE-MD-NJ-PA) (R) |
| Northern Branch (R) |
| Northern Subdivision (O) |
| Norwich Subdivision (R) |
| Ohio River Subdivision (O) |
| Old Colony (MBTA) Subdivision (R) |
| Old Main Line (O) |
| Orangeburg Subdivision (O) |
| Orlando Subdivision (R,O) |
| P&A Subdivision (R,O) |
| PD Subdivision (O) |
| Palmetto Subdivision (O) |
| Pana Subdivision (R) |
| Parmele Subdivision (O) |
| Passaic and Harsimus Line (R) |
| Pemberton Industrial Track (R) |
| Peninsula Subdivision (O) |
| Pennington Gap Branch (O) |
| Penns Grove Secondary (R) |
| Pensacola Subdivision (R) |
| Petersburg Subdivision (O) |
| Philadelphia Subdivision (O) |
| Pine Creek Subdivision (O) |
| Piney Creek Subdivision (O) |
| Pittsburgh (CSXT) Subdivision (O) |
| Plant City Subdivision (O) |
| Plymouth Subdivision (O) |
| Pomeroy Subdivision (O) |
| Pond Fork (O) |
| Poor Fork Branch (O) |
| Popes Creek Subdivision (O) |
| Port Huron Subdivision (O) |
| Port Reading Secondary (R) |
| Port Road Branch (R) |
| Port Subdivision (O) |
| Porter Subdivision (O) |
| Portsmouth Subdivision (O) |
| Post Road Branch (R) |
| Prattville Branch (O) |
| Princeton-Deepwater District (R) |
| RF&P Subdivision (O) |
| Raleigh Southwestern & Winding Gulf (O) |
| Raritan Valley Line (R) |
| Richmond & Alleghany Division (R) |
| Richmond Terminal (O) |
| Rivanna Subdivision (O) |
| River Line (R) |
| River Subdivision (R) |
| River Subdivision (O) |
| Rochester Subdivision (O) |
| Rock Island District (R) |
| Rockhouse Subdivision (O) |
| Rockwell Subdivision (R) |
| Rupert Subdivision (O) |
| Russell Subdivision (O) |
| S & C Subdivision (O) |
| S&NA North Subdivision (O) |
| S&NA South Subdivision (O) |
| Saginaw Subdivision (O) |
| Salem Subdivision (R) |
| Sanford Subdivision (O) |
| Savannah East Route (O) |
| Savannah West Route (O) |
| Schodack Subdivision (O) |
| Scottslawn Secondary (O) |
| Selkirk Subdivision (O) |
| Seth Subdivision (O) |
| Sewell Valley Subivision (O) |
| Shelby Subdivision (O) |
| Shelbyville Secondary (O) |
| Shenandoah Subdivision (O) |
| Short Line (O) |
| South Bend Subdivision (R) |
| South End Subdivision (O) |
| Southern Secondary (R) |
| Southern-East District (R) |
| Spartanburg Subdivision (O) |
| St Charles Branch (R) |
| St. Lawrence Carthage Branch (O) |
| St. Lawrence Subdivision (O) |
| St. Louis Line (O) |
| Sterling Secondary Subdivision (R) |
| Stony River (O) |
| Sycamore Lead (O) |
| Tallahassee Subdivision (O,R) |
| Tampa Terminal (O) |
| Tarboro Subdivision (O) |
| Terrell Subdivision (O) |
| Third District CNO&TP (R) |
| Thomas Subdivision (O) |
| Thomasville Subdivision (O) |
| Toledo Branch (O) |
| Toledo Subdivision (O) |
| Toledo Terminal (O) |
| Trenton (Fairless Branch) (O) |
| Trenton Line (O) |
| Valrico Subdivision (O) |
| Villa Grove Subdivision (R,O) |
| Vineland Secondary (R) |
| Vitus Subdivision (O) |
| Vulcraft Lead (O) |
| W&A Subdivision (O) |
| W&W Subdivision (O) |
| Warminster Line (R) |
| Waukesha (CN) Subdivision (R) |
| Waynesburg Southern Subdivision (R) |
| West Fork (O) |
| West Shore Branch (O) |
| West Sub Subdivision (R) |
| West Tennessee Main (R) |
| West Virginia Secondary (R) |
| Wildwood Lead (O) |
| Wildwood Subdivision (O) |
| Willard Subdivision (O) |
| Willard Terminal (O) |
| Wilmington Subdivision (O) |
| Wilson Subdivision (R) |
| Wilsonville Branch (O) |
| Winding Gulf Branch (R) |
| Woodland Subdivision (O) |
| Yeoman Subdivision (O) |
| Youngstown Line (R) |
