Railroad classes

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Class I railroads in North America in 2006

In the United States, railroads are designated as Class I, II, or III, according to size criteria first established by the Interstate Commerce Commission (ICC) in 1911. Since the ICC was abolished on January 1, 1996, railroads have been governed by the Surface Transportation Board.

There are six US Class I freight railroad companies. Canada has two Class I freight railroads, both of which have trackage in the US. Mexico has two Class I freight railroads, one with trackage in the US. In addition, the national passenger railroads in the US and Canada—Amtrak and Via Rail—are both Class I.


Initially, the ICC classed railroads by their annual gross revenue. Class I railroads had an annual operating revenue of at least $1 million, while Class III railroad incomes were under $100,000 per annum. All such corporations were subject to reporting requirements on a quarterly or annual schedule. If a railroad slipped below its class qualification threshold for a period, it was not necessarily demoted immediately. For instance, in 1925, the ICC reported 174 Class I railroads, 282 Class II railroads, and 348 Class III railroads.

Since dissolution of the ICC in 1996, the Surface Transportation Board (STB) has become responsible for defining criteria for each railroad class. The bounds are typically redefined every several years to adjust for inflation and other factors.

Classification history[edit]

The initial $1 million criterion established in 1911 for a Class I railroad was used until January 1, 1956, when the figure was increased to $3 million (equal to $28,211,750 in 2019). In 1956, the ICC counted 113 Class I line-haul operating railroads (excluding "3 class I companies in systems") and 309 Class II railroads (excluding "3 class II companies in systems"). The Class III category was dropped in 1956 but reinstated in 1978. By 1963, the number of Class I railroads had dropped to 102; cutoffs were increased to $5 million by 1965 (equal to $40,564,942 in 2019), to $10 million in 1976 (equal to $44,929,825 in 2019), and to $50 million in 1978 (equal to $195,994,898 in 2019), at which point only 41 railroads qualified as Class I.

In a special move in 1979, all switching and terminal railroads were re-designated Class III, including those with Class I or Class II revenues.

Class II and Class III designations are now rarely used outside the rail transport industry. The Association of American Railroads typically divides non–Class I companies into three categories:


Class I[edit]

In the United States, the Surface Transportation Board defines a Class I railroad as "having annual carrier operating revenues of $250 million or more in 1991 dollars", which adjusted for inflation was $452,653,248 in 2012.[1] According to the Association of American Railroads, Class I railroads had a minimum carrier operating revenue of $433.2 million in 2011.[2]

In early 1991, two Class II railroads, Montana Rail Link and Wisconsin Central, asked the Interstate Commerce Commission (ICC) to increase the minimum annual operating revenue criteria (then established at US$93.5 million) to avoid being redesignated as Class I, which would have resulted in increased administrative and legal costs.[3] The Class II maximum criterion was increased in 1992 to $250 million annually, which resulted in the Florida East Coast Railway having its status changed to Class II. Rail carriers with less than $20 million in revenue are designated as Class III.[4]

In Canada, a Class I rail carrier is defined (as of 2004) as a company that has earned gross revenues exceeding $250 million (CAD) for each of the previous two years.[5]

Class I railroads are more fuel efficient than truck transport – on average, they move one ton of freight (0.91 metric tons) more than 470 miles (756 kilometers) per gallon (3.8 liters) of diesel fuel.[6]

In 2013, eleven railroads in North America were designated as Class I. In the United States, Amtrak and seven freight railroads are designated Class I based on 2011 measurements released in 2013.[2](p1)

Railroad Trackage
Canada United States Mexico
Amtrak Yes Yes No
BNSF Railway Yes Yes No
Canadian National Railway Yes Yes
[Note 1]
Canadian Pacific Railway Yes Yes
[Note 2]
CSX Transportation Yes Yes No
Ferromex No No Yes
Kansas City Southern Railway No Yes Yes
[Note 3]
Norfolk Southern Railway Yes Yes No
Union Pacific Railroad No Yes No
Via Rail Yes No No
  1. ^ Operated by Grand Trunk Corporation, a wholly owned subsidiary of Canadian National Railway.
  2. ^ Operated by Soo Line Corporation, a wholly owned subsidiary of Canadian Pacific Railway.
  3. ^ Operated by Kansas City Southern de México, a wholly owned subsidiary of Kansas City Southern.

Class II[edit]

A Class II railroad in the United States hauls freight and is mid-sized in terms of operating revenue. As of 2011, a railroad with revenues greater than $37.4 million but less than $433.2 million for at least three consecutive years is considered Class II.[7] Switching and terminal railroads are excluded from Class II status.

Railroads considered by the Association of American Railroads as "Regional Railroads" are typically Class II. An example of a Class II would be the Florida East Coast Railway.

Current Class II criteria[edit]

The last major change of the upper bound for a Class II railroad was in 1992, when the Florida East Coast Railway was changed from a Class I railroad to Class II.[8] A previous change in 1991, which prevented two railroads—Montana Rail Link and Wisconsin Central—from becoming Class I, was made at the request of the two railroads, as they did not wish to take on the extra cost and paperwork associated with Class I status.[9][full citation needed] Changes since then have been adjustments for inflation.

The Buckingham Branch Railroad is a typical example of a Class III shortline in Virginia

Class III[edit]

A Class III railroad has an annual operating revenue of less than $20 million (1991 dollars).[10] Class III railroads are typically local short-line railroads serving a small number of towns and industries or hauling cars for one or more railroads; many Class III railroads were once branch lines of larger railroads or abandoned portions of main lines. Many Class III railroads are owned by railroad holding companies such as Genesee & Wyoming, Watco Companies and Iowa Pacific Holdings.

Continued use of the class system[edit]

In the United States, the Surface Transportation Board continues to use designations of Class II and Class III since there are different labor regulations for the two classes.

See also[edit]



  1. ^ "Archived copy". Archived from the original on December 18, 2013. Retrieved April 7, 2016.CS1 maint: archived copy as title (link)
  2. ^ a b "Class I Railroad Statistics" (PDF). Association of American Railroads. April 17, 2013. Archived from the original (PDF) on November 3, 2013. Retrieved October 31, 2013.
  3. ^ Arrivals and Departures, Trains March 1991
  4. ^ Arrivals and Departures, Trains November 1992
  5. ^ Branch, Legislative Services (June 3, 2019). "Consolidated federal laws of canada, Transportation Information Regulations".
  6. ^ "Freight Rail & Preserving the Environment". Association of American Railroads. 2020. p. 1. Retrieved September 6, 2020.
  7. ^ "ASLRRA FAQ". Archived from the original on May 6, 2014.
  8. ^ "Arrivals and Departures". Trains. November 1992.
  9. ^ "Arrivals and Departures". Trains (Free full text) |format= requires |url= (help).
  10. ^ 49 CFR Part 1201, General Instructions 1-1, GPO, 2007


External links[edit]