To specify charges
For a line item: freight or special charge; for the total invoice: the total charges -- expressed in the standard monetary denomination for the currency specified
CGS01 is the freight charge.
Code (Standard ISO) for country in whose currency the charges are specified
Code specifying type of date or time, or both date and time
P0304: If either CGS-03 or CGS-04 is present, then the other is required