The letters "CE" are the abbreviation of French phrase "Conformité Européene" which literally means "European Conformity". The term initially used was "EC Mark" and it was officially replaced by "CE Marking" in the Directive 93/68/EEC in 1993. "CE Marking" is now used in all EU official documents. "CE Mark" is also in use, but it is NOT the official term.
CE Marking on a product is a manufacturer's declaration that the product complies with the essential requirements of the relevant European health, safety and environmental protection legislation, in practice by many of the so-called Product Directives.*
From what i understand if a product says "made in USA" it has to be 100% USA Made. If not it must then say "Assembeled in the USA"
An Audio cable manufactuer in the US was recently heavily fined for stating "made in USA" when all the componets were actualey made in China. The cables were assembled in the USA. I doubt Oakley would open themselves up to litigation.
Also when i did nmy tour and if I remember correctly all Frames and Lens are made in the US, unless stated otherwise.
The california Polution laws are severe, and technically Oakley can't manufacture there becasue of these laws, but they do ....How?... well they meet all the regulations set by the government. I can't remeber the specific detials on how they do it, lets just say they do. ( I'm sure this is what i was told).