IS1 Estimated Time of Arrival and Car Scheduling
To transmit basic data relating to car scheduling information
Code identifying purpose of transaction set
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.
Sequencing or serial part of an equipment unit's identifying number (pure numeric form for equipment number is preferred)
Code which specifies the loaded condition of transportation equipment
Code identifying the reason a trip has been revised
Code specifying type of rail car or intermodal equipment type and its general characteristics
Code indicating a code from a specific industry code list
IS107 is the estimated time of interchange (ETI) category response code.