EDI 421 Estimated Time of Arrival and Car Scheduling

Functional Group IS

X12I Transportation Subcommittee

This X12 Transaction Set contains the format and establishes the data contents of the Estimated Time of Arrival and Car Scheduling Transaction Set (421) for use within the context of an Electronic Data Interchange (EDI) environment. This transaction set can be used to allow railroads to exchange car scheduling and estimated time of arrival data between carriers.

Heading

1. 0100 · ST · Transaction Set Header · Max 1 · Mandatory

   To indicate the start of a transaction set and to assign a control number

2. 0200 · IS1 · Estimated Time of Arrival and Car Scheduling · Max 1 · Mandatory

   To transmit basic data relating to car scheduling information

3. 0300 · N9 · Extended Reference Information · Max 5 · Mandatory

   To transmit identifying information as specified by the Reference Identification Qualifier

4. 0350 · ISC · Interline Service Commitment Detail · Max >1 · Optional

   To identify the service commitment schedules

5. 0400 · N8 · Waybill Reference · Max 1 · Optional

   To identify the waybill and to specify the equipment used and the destination details

6. 0500 · IS2 · Scheduled Events · Max >1 · Mandatory

   To transmit scheduled events such as arrivals, departures, and interchange times

7. 0700 · F9 · Origin Station · Max 1 · Optional

   To identify the rail origin of the shipment

8. 0800 · D9 · Destination Station · Max 1 · Optional

   To identify the rail destination of the shipment

9. 0900 · N1 · Party Identification · Max 10 · Optional

   To identify a party by type of organization, name, and code

10. 1100 · R2 · Route Information · Max 13 · Optional

    To specify carrier and routing sequences and details

11. 1200 · L5 · Description, Marks and Numbers · Max 5 · Optional

    To specify the line item in terms of description, quantity, packaging, and marks and numbers

12. 1300 · H3 · Special Handling Instructions · Max 6 · Optional

    To specify special handling instructions in coded or free-form format

13. 1400 · H5 · Car Service Order · Max 1 · Optional

    To identify the car service directive or other car movement instructions applicable to the empty movement of the car

14. 1500 · IC · Intermodal Chassis Equipment · Max 1 · Optional

    To specify the chassis equipment details in terms of identifying numbers, weights, and ownership

15. 1600 · IMA · Interchange Move Authority · Max 1 · Optional

    To identify the transportation interchange authority

16. 1700 · PS · Protective Service Instructions · Max 1 · Optional

    To specify mechanical protective service and ventilation instructions

17. 1800 · REF · Reference Information · Max 10 · Optional

    To specify identifying information

18. 1900 · N8A · Additional Reference Information · Max 25 · Optional

    To identify additional station and waybill or station, or waybill information pertaining to revenue waybill

19. S1 Loop Optional Repeat 12

    1. 2000 · S1 · Stop-off Name · Max 1 · Mandatory

       To identify a stop-off party

    2. 2100 · S9 · Stop-off Station · Max 1 · Optional

       To specify location details for a stop-off

20. 2200 · LS · Loop Header · Max 1 · Optional

    To indicate that the next segment begins a loop

21. LH1 Loop Optional Repeat 1000

    1. 2300 · LH1 · Hazardous Identification Information · Max 1 · Mandatory

       To specify the hazardous commodity identification reference number and quantity

    2. 2400 · LH2 · Hazardous Classification Information · Max 4 · Optional

       To specify the hazardous notation and endorsement information

    3. 2500 · LH3 · Hazardous Material Shipping Name · Max 10 · Optional

       To specify the hazardous material shipping name and additional descriptive requirements

    4. 2600 · LFH · Freeform Hazardous Material Information · Max 20 · Optional

       To uniquely identify the variable information required by government regulation covering the transportation of hazardous material shipments

    5. 2700 · LEP · EPA Required Data · Max 3 · Optional

       To specify the Environmental Protection Agency (EPA) information relating to shipments of hazardous material

    6. 2800 · LH4 · Canadian Dangerous Requirements · Max 1 · Optional

       To specify additional Transport Canada requirements covering transportation of dangerous goods in Canada

    7. 2900 · LHT · Transborder Hazardous Requirements · Max 3 · Optional

       To specify the placard information required by the second government agency when shipment is to cross into another country

    8. 3000 · LHR · Hazardous Material Identifying Reference Numbers · Max 5 · Optional

       To transmit specific hazardous material reference numbers

    9. 3100 · PER · Administrative Communications Contact · Max 5 · Optional

       To identify a person or office to whom administrative communications should be directed

    10. N1 Loop Optional Repeat 10

        1. 3120 · N1 · Party Identification · Max 1 · Mandatory

           To identify a party by type of organization, name, and code

        2. 3140 · N3 · Party Location · Max 2 · Optional

           To specify the location of the named party

        3. 3160 · N4 · Geographic Location · Max 1 · Optional

           To specify the geographic place of the named party

        4. 3180 · PER · Administrative Communications Contact · Max 2 · Optional

           To identify a person or office to whom administrative communications should be directed

22. 3200 · LE · Loop Trailer · Max 1 · Optional

    To indicate that the loop immediately preceding this segment is complete

23. 3300 · PER · Administrative Communications Contact · Max 5 · Optional

    To identify a person or office to whom administrative communications should be directed

24. 3400 · SE · Transaction Set Trailer · Max 1 · Mandatory

    To indicate the end of the transaction set and provide the count of the transmitted segments (including the beginning (ST) and ending (SE) segments)