Used to limit the application of restrictions to a subset of standard Association of American Railroads Pool Codes
Code indicating a Yes or No condition or response
APR01 indicates if restriction is included. A "Y" indicates restriction is included; an "N" indicates restriction is excluded.
Code identifying a pool of equipment assigned to a specific shipper
Code identifying a pool of equipment assigned to a specific shipper
APR03 indicates the high end of a range.
