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

Position
Segment
Name
Max use
0100
Transaction Set HeaderMandatory
Max 1
To indicate the start of a transaction set and to assign a control number
0200
Estimated Time of Arrival and Car SchedulingMandatory
Max 1
To transmit basic data relating to car scheduling information
0300
Reference IdentificationMandatory
Max 5
To transmit identifying information as specified by the Reference Identification Qualifier
0350
Interline Service Commitment DetailOptional
Max >1
To identify the service commitment schedules
0400
Waybill ReferenceOptional
Max 1
To identify the waybill and to specify the equipment used and the destination details
0500
Scheduled EventsMandatory
Max >1
To transmit scheduled events such as arrivals, departures, and interchange times
0700
Origin StationOptional
Max 1
To identify the rail origin of the shipment
0800
Destination StationOptional
Max 1
To identify the rail destination of the shipment
0900
NameOptional
Max 10
To identify a party by type of organization, name, and code
1100
Route InformationOptional
Max 13
To specify carrier and routing sequences and details
1200
Description, Marks and NumbersOptional
Max 5
To specify the line item in terms of description, quantity, packaging, and marks and numbers
1300
Special Handling InstructionsOptional
Max 6
To specify special handling instructions in coded or free-form format
1400
Car Service OrderOptional
Max 1
To identify the car service directive or other car movement instructions applicable to the empty movement of the car
1500
Intermodal Chassis EquipmentOptional
Max 1
To specify the chassis equipment details in terms of identifying numbers, weights, and ownership
1600
Interchange Move AuthorityOptional
Max 1
To identify the transportation interchange authority
1700
Protective Service InstructionsOptional
Max 1
To specify mechanical protective service and ventilation instructions
1800
Reference IdentificationOptional
Max 10
To specify identifying information
1900
Additional Reference InformationOptional
Max 25
To identify additional station and waybill or station, or waybill information pertaining to revenue waybill
S1 Loop
Repeat 12
2000
Stop-off NameMandatory
Max 1
To identify a stop-off party
2100
Stop-off StationOptional
Max 1
To specify location details for a stop-off
2200
Loop HeaderOptional
Max 1
To indicate that the next segment begins a loop
LH1 Loop
Repeat 1000
2300
Hazardous Identification InformationMandatory
Max 1
To specify the hazardous commodity identification reference number and quantity
2400
Hazardous Classification InformationOptional
Max 4
To specify the hazardous notation and endorsement information
2500
Hazardous Material Shipping NameOptional
Max 10
To specify the hazardous material shipping name and additional descriptive requirements
2600
Freeform Hazardous Material InformationOptional
Max 20
To uniquely identify the variable information required by government regulation covering the transportation of hazardous material shipments
2700
EPA Required DataOptional
Max 3
To specify the Environmental Protection Agency (EPA) information relating to shipments of hazardous material
2800
Canadian Dangerous RequirementsOptional
Max 1
To specify additional Transport Canada requirements covering transportation of dangerous goods in Canada
2900
Transborder Hazardous RequirementsOptional
Max 3
To specify the placard information required by the second government agency when shipment is to cross into another country
3000
Hazardous Material Identifying Reference NumbersOptional
Max 5
To transmit specific hazardous material reference numbers
3100
Administrative Communications ContactOptional
Max 5
To identify a person or office to whom administrative communications should be directed
N1 Loop
Repeat 10
3120
NameMandatory
Max 1
To identify a party by type of organization, name, and code
3140
Address InformationOptional
Max 2
To specify the location of the named party
3160
Geographic LocationOptional
Max 1
To specify the geographic place of the named party
3180
Administrative Communications ContactOptional
Max 2
To identify a person or office to whom administrative communications should be directed
3200
Loop TrailerOptional
Max 1
To indicate that the loop immediately preceding this segment is complete
3300
Administrative Communications ContactOptional
Max 5
To identify a person or office to whom administrative communications should be directed
3400
Transaction Set TrailerMandatory
Max 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)

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