BLR Beginning Segment Loading and Route Guide
To transmit the identifying SCAC code and effective date for the transaction set.
Position
Element
Name
Type
Requirement
Min
Max
Repeat
BLR-01Standard Carrier Alpha Code
Identifier (ID)
Mandatory
2
4
-
Standard Carrier Alpha Code
BLR-02Date
Date (DT)
Mandatory
6
6
-
Date (YYMMDD).
BLR02 is the effective date.