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 · Type: Identifier (ID) · Requirement: Optional · Min: 3 · Max: 3 · Repeat: -

Code uniquely identifying a Transaction Set.

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

Arbitrary identifying number assigned by inquirer.

Position: B4-03 · Element: 157 · Name: Status Code · Type: Identifier (ID) · Requirement: Mandatory · 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), expressed in 24-hour clock time, of last reported status of cargo. (Time range: 0000 - 2359).

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 inflight, 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 alpha 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).