SMB Beginning Segment for Railroad Station Master File
To identify the type of transaction update, effective date, and type of station
Code identifying purpose of transaction set.
The acceptable code values for DE353 are 02, 03 and 04.
Code identifying the type of geographic location.
Code (Standard Point Location) defined by NMFTA point development group as the official code assigned to a city or point (for ratemaking purposes) within a city.
SMB04 is required except when the carrier is adding a new station in the update transaction to the AAR.