Understanding GATT Symbols
A document symbol is the unique and most commonly-referred to identifier of a WTO official document . The symbol is the counterpart of the call number or shelf number that is used commonly in libraries to identify books and other loan items. Based on the WTO Document Nomenclature (or classification scheme), the symbol can be more or less complex according to the series in which the document is being issued, its subject or its type.
Examples of WTO document symbols:
Explanation of document symbol IP/C/W/34/Add.3/Suppl.3
This is the third supplement to the third addendum to the thirty-fourth working document issued by the Council for Trade-Related Aspects of Intellectual Property Rights (part of the Intellectual Property document collection).
IP = Collection
C = Series
W = Type
34; 3; 3 = Sequential Numbers (presumably there would be a 34/Add.2/Suppl.2)
Add.; Suppl = Status (Addendum; Supplement)