421Estimated Time of Arrival and Car Scheduling

This Draft Standard for Trial Use 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.

  • ST
    Transaction Set Header
    M必须(Mandatory)
    Repeat 1

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

  • IS1
    Estimated Time of Arrival and Car Scheduling
    M必须(Mandatory)
    Repeat 1

    To transmit basic data relating to car scheduling information

  • N9
    Reference Identification
    M必须(Mandatory)
    Repeat 5

    To transmit identifying information as specified by the Reference Identification Qualifier

  • ISC
    Interline Service Commitment Detail
    O可选(Optional)
    Repeat > 1

    To identify the service commitment schedules

  • N8
    Waybill Reference
    O可选(Optional)
    Repeat 1

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

  • IS2
    Scheduled Events
    M必须(Mandatory)
    Repeat > 1

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

  • F9
    Origin Station
    O可选(Optional)
    Repeat 1

    To identify the rail origin of the shipment

  • D9
    Destination Station
    O可选(Optional)
    Repeat 1

    To identify the rail destination of the shipment

  • N1
    Name
    O可选(Optional)
    Repeat 10

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

  • R2
    Route Information
    O可选(Optional)
    Repeat 13

    To specify carrier and routing sequences and details

  • L5
    Description, Marks and Numbers
    O可选(Optional)
    Repeat 5

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

  • H3
    Special Handling Instructions
    O可选(Optional)
    Repeat 6

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

  • H5
    Car Service Order
    O可选(Optional)
    Repeat 1

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

  • IC
    Intermodal Chassis Equipment
    O可选(Optional)
    Repeat 1

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

  • IMA
    Interchange Move Authority
    O可选(Optional)
    Repeat 1

    To identify the transportation interchange authority

  • PS
    Protective Service Instructions
    O可选(Optional)
    Repeat 1

    To specify mechanical protective service and ventilation instructions

  • REF
    Reference Identification
    O可选(Optional)
    Repeat 10

    To specify identifying information

  • N8A
    Additional Reference Information
    O可选(Optional)
    Repeat 25

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

  • S1Loop1Stop-off Name LOOPO可选(Optional)Repeat 12
    S1S9
    • S1
      Stop-off Name
      M必须(Mandatory)
      Repeat 1

      To identify a stop-off party

    • S9
      Stop-off Station
      O可选(Optional)
      Repeat 1

      To specify location details for a stop-off

  • LSLoop1Loop Header LOOPO可选(Optional)Repeat 1
    LSLH1Loop1LE
    • LS
      Loop Header
      M必须(Mandatory)
      Repeat 1

      To indicate that the next segment begins a loop

    • LH1Loop1Hazardous Identification Information LOOPO可选(Optional)Repeat 100
      LH1LH2LH3LFHLEPLH4LHTLHRPER
      • LH1
        Hazardous Identification Information
        M必须(Mandatory)
        Repeat 1

        To specify the hazardous commodity identification reference number and quantity

      • LH2
        Hazardous Classification Information
        O可选(Optional)
        Repeat 4

        To specify the hazardous classification, placard notation, and endorsement information

      • LH3
        Hazardous Material Shipping Name
        O可选(Optional)
        Repeat 10

        To specify the hazardous material shipping name and additional descriptive requirements

      • LFH
        Freeform Hazardous Material Information
        O可选(Optional)
        Repeat 20

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

      • LEP
        EPA Required Data
        O可选(Optional)
        Repeat 3

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

      • LH4
        Canadian Dangerous Requirements
        O可选(Optional)
        Repeat 1

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

      • LHT
        Transborder Hazardous Requirements
        O可选(Optional)
        Repeat 3

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

      • LHR
        Hazardous Material Identifying Reference Numbers
        O可选(Optional)
        Repeat 5

        To transmit specific hazardous material reference numbers

      • PER
        Administrative Communications Contact
        O可选(Optional)
        Repeat 5

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

    • LE
      Loop Trailer
      M必须(Mandatory)
      Repeat 1

      To indicate that the loop immediately preceding this segment is complete

  • PER
    Administrative Communications Contact
    O可选(Optional)
    Repeat 5

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

  • SE
    Transaction Set Trailer
    M必须(Mandatory)
    Repeat 1

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

Segment
X12 EDI Release 00307
To indicate the start of a transaction set and to assign a control number
Elements
  • ST01143Transaction Set Identifier Code
    ID
    M必须(Mandatory)
    Min 3 / Max 3

    Code uniquely identifying a Transaction Set

    Codes (320)
  • ST02329Transaction Set Control Number
    AN
    M必须(Mandatory)
    Min 4 / Max 9

    Identifying control number that must be unique within the transaction set functional group assigned by the originator for a transaction set

  • ST031705Implementation Convention Preference
    AN
    O可选(Optional)
    Min 1 / Max 9