Reporting marks on two CP Rail covered hoppers passing Wisconsin Dells, Wisconsin, June 20, 2004. The left one is CP 388686 and the right is SOO 115239.

A reporting mark is an identification assigned by the Association of American Railroads (AAR) to rail carriers and other companies operating in North America. Image File history File links Reporting_marks. ... Image File history File links Reporting_marks. ... The Canadian Pacific Railway (CPR; AAR reporting marks CP, CPAA, CPI), known as CP Rail between 1968 and 1996, is a Canadian Class I railway operated by Canadian Pacific Railway Limited. ... DME 49328, a covered hopper owned and operated by the Dakota, Minnesota and Eastern Railroad. ... Wisconsin Dells is a city located in south-central Wisconsin, in the United States. ... June 20 is the 171st day of the year (172nd in leap years) in the Gregorian Calendar, with 194 days remaining. ... 2004 (MMIV) was a leap year starting on Thursday of the Gregorian calendar. ... Categories: Rail stubs | Defunct railroad companies of the United States | Illinois railroads | Michigan railroads | Minnesota railroads | North Dakota railroads | South Dakota railroads | Wisconsin railroads ... A World War II era print advertisement for the Association of American Railroads (AAR). ... World map showing North America A satellite composite image of North America. ...

Reporting mark standard practices

An AAR reporting mark is a sequence of two to four letters that uniquely identifies the owner of a piece of railroad rolling stock. The ampersand symbol (&) is not considered part of the reporting mark. When a new reporting mark is created, its first letter is selected to be the same as the first letter of the applying company's name; the remaining letters in a reporting mark are generally derived from the applying company's initials. For example, the reporting marks for which Union Pacific Railroad (UP) applied all begin with the letter U. As companies are merged, the companies' reporting marks are normally transferred to the resultant companies along with the original companies' trademarks and logos. The reporting marks that were assigned to Chicago and North Western Railway (CNW), for example, are now assigned to UP which purchased CNW in the 1990s. This is the top-level page of WikiProject trains Rail tracks Rail transport refers to the land transport of passengers and goods along railways or railroads. ... Rolling Stock. ... The Union Pacific Railroad NYSE: UNP is the largest railroad in the United States. ... The Chicago and North Western Railway (AAR reporting marks: CNW, CNWS, CNWZ; unofficial abbreviation: C&NW) was a Class I railroad in the United States. ...

Marks that end in X are assigned to rail car owners that are not common carrier railroads themselves (typically these are private car owners, leasing companies or railroad museums). Marks that end in Z are assigned to trailer owners/operators for use on equipment that does not have flanged wheels but that will be used on North American railroads in intermodal service. Marks that end in U are assigned to container owners/operators for use on equipment that will be used in intermodal service. Marks that end in any other letter are assigned to railroads for use on railroad equipment in interchange service. A common carrier is an organization that transports a product or service using its facilities, or those of other carriers, and offers its services to the general public. ... A Trailer is an unpowered vehicle pulled by one with an engine. ... An intermodal train carrying both shipping containers and highway trailers in piggyback service passes through the Cajon Pass in February, 1995. ... Containerization is a system of intermodal cargo transport using standard ISO containers (also known as isotainers) that can be loaded on container ships, railroad cars, and trucks. ...

List of AAR reporting marks

Where multiple railroads are listed on a reporting mark, their order indicates the order of the mark's assignment; the succession is usually through mergers or buyouts.

Due to this list's size, it has been split into subpages based on the first letter of the reporting mark.

External links

• Association of American Railroads
• Establishing and Expiring a Reporting Mark (Railinc)
• Trailer, Chassis and Private Marks (Railinc)
• Reporting Marks (incomplete summary)