To indicate the start of a transaction set and to assign a control number
20
IS1
Estimated Time of Arrival and Car Scheduling
To transmit basic data relating to car scheduling information
To transmit identifying information as specified by the Reference Identification Qualifier
35
ISC
Interline Service Commitment Detail
To identify the service commitment schedules
To identify the waybill and to specify the equipment used and the destination details
To transmit scheduled events such as arrivals, departures, and interchange times
To identify the rail origin of the shipment
To identify the rail destination of the shipment
To identify a party by type of organization, name, and code
To specify carrier and routing sequences and details
120
L5
Description, Marks and Numbers
To specify the line item in terms of description, quantity, packaging, and marks and numbers
130
H3
Special Handling Instructions
To specify special handling instructions in coded or free-form format
To identify the car service directive or other car movement instructions applicable to the empty movement of the car
150
IC
Intermodal Chassis Equipment
To specify the chassis equipment details in terms of identifying numbers, weights, and ownership
160
IMA
Interchange Move Authority
To identify the transportation interchange authority
170
PS
Protective Service Instructions
To specify mechanical protective service and ventilation instructions
To specify identifying information
190
N8A
Additional Reference Information
To identify additional station and waybill or station, or waybill information pertaining to revenue waybill
To identify a stop-off party
To specify location details for a stop-off
To indicate that the next segment begins a loop
230
LH1
Hazardous Identification Information
To specify the hazardous commodity identification reference number and quantity
240
LH2
Hazardous Classification Information
To specify the hazardous notation and endorsement information
250
LH3
Hazardous Material Shipping Name
To specify the hazardous material shipping name and additional descriptive requirements
260
LFH
Freeform Hazardous Material Information
To uniquely identify the variable information required by government regulation covering the transportation of hazardous material shipments
To specify the Environmental Protection Agency (EPA) information relating to shipments of hazardous material
280
LH4
Canadian Dangerous Requirements
To specify additional Transport Canada requirements covering transportation of dangerous goods in Canada
290
LHT
Transborder Hazardous Requirements
To specify the placard information required by the second government agency when shipment is to cross into another country
300
LHR
Hazardous Material Identifying Reference Numbers
To transmit specific hazardous material reference numbers
310
PER
Administrative Communications Contact
To identify a person or office to whom administrative communications should be directed
To indicate that the loop immediately preceding this segment is complete
330
PER
Administrative Communications Contact
To identify a person or office to whom administrative communications should be directed
To indicate the end of the transaction set and provide the count of the transmitted segments (including the beginning (ST) and ending (SE) segments)
