The Centralized Station Master (CSM) is a geographic location file which contains data about rail and motor carrier points for North America and international areas. This file is primarily used by railroads to help plan freight movements from origin to destination in an efficient and timely manner.
CSM rail station records are uniquely identified by combination of the Standard Carrier Alpha Code (SCAC) field and Freight Station Accounting Code (FSAC) field. They can also be identified uniquely by their respective Standard Point Location Code (SPLC).
CSM station records must be added to the CSM file before data can be added to other IRFs such as Junction Interchange, Junction Settlement and Route. Systems that depend on this data include the Interline Settlement System (ISS), Price Database, NRMS and the Rate EDI Network (REN).
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