IS1 Estimated Time of Arrival and Car Scheduling

To transmit basic data relating to car scheduling information

Position
Element
Name
Type
Requirement
Min
Max
Repeat
IS1-01
Transaction Set Purpose Code
Identifier (ID)
Mandatory
2
2
1
Code identifying purpose of transaction set
IS1-02
Equipment Initial
String (AN)
Mandatory
1
4
1
Prefix or alphabetic part of an equipment unit's identifying number
IS102 and IS103 are the car initial and number for carload shipments and the container/trailer number for Trailer on Freight Car (TOFC) or Container on Freight Car (COFC) intermodal shipments.
IS1-03
Equipment Number
String (AN)
Mandatory
1
15
1
Sequencing or serial part of an equipment unit's identifying number (pure numeric form for equipment number is preferred)
IS1-04
Load/Empty Status Code
Identifier (ID)
Mandatory
1
1
1
Code specifying the loaded condition of transportation equipment
IS1-05
Retrip Reason Code
Identifier (ID)
Optional
2
2
1
Code identifying the reason a trip has been revised
IS1-06
Car Type Code
Identifier (ID)
Optional
1
4
1
Code specifying type of rail car or intermodal equipment type and its general characteristics
IS1-07
Industry Code
String (AN)
Optional
1
30
1
Code indicating a code from a specific industry code list
IS107 is the estimated time of interchange (ETI) category response code.
IS1-08
Equipment Description Code
Identifier (ID)
Optional
2
2
1
Code identifying type of equipment used for shipment

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