Code specifying a section of a message.
Type
String (AN)
Length
Max 3 / Min 1
Codes
<>  1
Heading section
The section of the message being referenced is the header.
<>  2
Detail section
The section of the message being referenced is the detail.
<>  5
Multiple sections
Multiple sections of the message are being referenced.
<>  6
Summary section
The section of the message being referenced is the summary.
<>  7
Sub-line item
The section of the message being referenced refers to the sub-line item.
<>  8
Commercial heading section of CUSDEC
Group 7 to 14 of CUSDEC message.
<>  9
Commercial line detail section of CUSDEC
Group 15 to 22 of CUSDEC message.
<>  10
Customs item detail section of CUSDEC
Group 23 to 33 of CUSDEC message.
<>  11
Customs sub-item detail section of CUSDEC
Group 34 and 35 of CUSDEC message.

