Attribute type: A

Used in:
Definition:
Information about the source of the object.
Indication:
Country (c2): (mandatory)

Two letter code from ISO 3166 (refer to Annex A to S-57 Appendix A)
Authority (c2): (mandatory)
A string of two alphanumeric characters (refer to Annex A to S-57 Appendix A), e.g. German Bundesamt für Seeschiffahrt und Hydrographie = DE; US National Imagery and Mapping Agency = U1.

Source (c5): Graphic e.g. plotting sheet, paper chart = graph
Report e.g. wreck report = reprt
ID-Code (c...): e.g. Code of paper chart
Format:
c2,c2,c5,c...
Example:
DK,D1,graph,chart196