MS3 Interline Information
To identify the interline carrier and relevant data
Standard Carrier Alpha Code
MS301 is the Standard Carrier Alpha Code (SCAC) of the interline carrier.
Code describing the relationship of a carrier to a specific shipment movement
Free-form text for city name
MS303 is the city where the interline was performed.
Code specifying the method or type of transportation for the shipment
Code (Standard State/Province) as defined by appropriate government agency
C0503: If MS3-05 is present, then MS3-03 is required