Adds values from the Norwegian National Annex —titled NS-EN 1993-1-1:2005/NA 2008— for use with Eurocode 3, or EN 1993-1-1:2005. The NA document makes small changes to the base document.

The clauses/sections in EN 1993-1-1:2005 (hereafter referred to as EC-3) that require additional clauses from the Norwegian National Annex are: