Code identifying a Transaction Set

Identification number assigned to the shipment by the shipper that uniquely identifies the shipment from origin to ultimate destination and is not subject to modification; (Does not contain blanks or special characters)

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

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

Sender's assigned number for referenced transaction set

Date of referenced transaction set expressed in format CCYYMMDD where CC represents the first two digits of the calendar year

Code indicating that the transaction set contains information which corrects previous information

Code identifying the Standard Carrier Alpha Code

Number which designates the check digit applied to a piece of equipment

ZD09 is the equipment check digit for the equipment number in ZD04.