B4 Beginning Segment for Inquiry or Reply

To transmit identifying numbers, dates and other basic data relating to the transaction set

Position: B4-01 · Element: 143 · Name: Transaction Set Identifier Code · Type: Identifier (ID) · Requirement: Optional · Min: 3 · Max: 3 · Repeat: -

Code uniquely identifying a Transaction Set.

Due to the installation of the "ST" segment in all transaction sets, data element 143 in all of the "B" segments is redundant. DE143 will be retained as an optional data element for a period of adjustment. It is suggested that DE143 not be transmitted so it may be dropped from segment definitions in the future.

If either B407 or B408 is present, then the other is required.

Position: B4-02 · Element: 71 · Name: Inquiry Request Number · Type: Numeric (N0) · Requirement: Conditional · Min: 1 · Max: 3 · Repeat: -

Identifying number assigned by inquirer.

Position: B4-03 · Element: 157 · Name: Status Code · Type: Identifier (ID) · Requirement: Optional · Min: 1 · Max: 2 · Repeat: -

Code indicating last reported status for a shipment.

Position: B4-04 · Element: 158 · Name: Status Date · Type: Date (DT) · Requirement: Conditional · Min: 6 · Max: 6 · Repeat: -

Date of last reported status of cargo.

Position: B4-05 · Element: 161 · Name: Status Time · Type: Time (TM) · Requirement: Conditional · Min: 4 · Max: 4 · Repeat: -

Time (HHMM) of last reported status of cargo.

Position: B4-06 · Element: 159 · Name: Status Location · Type: String (AN) · Requirement: Conditional · Min: 3 · Max: 5 · Repeat: -

Air shipment: Airport code for last reported status for a shipment. (Note: If the shipment is in-flight, the status location is the origin airport for this flight.) Ground transportation: Code of carrier's terminal.

Position: B4-07 · Element: 206 · Name: Equipment Initial · Type: String (AN) · Requirement: Conditional · Min: 1 · Max: 4 · Repeat: -

Prefix or alphabetic part of an equipment unit's identifying number.

Position: B4-08 · Element: 207 · Name: Equipment Number · Type: String (AN) · Requirement: Conditional · Min: 1 · Max: 10 · Repeat: -

Sequencing or serial part of an equipment unit's identifying number (pure numeric form for equipment number is preferred).

Position: B4-09 · Element: 578 · Name: Equipment Status Code · Type: Identifier (ID) · Requirement: Optional · Min: 1 · Max: 2 · Repeat: -

Code indicating status of equipment.