Norway is an associate member of EASA, as is Switzerland, and therefore I believe has signed up to adopting EU civil aviation safety rules developed or being developed by EASA and the other EU institutions. Likewise Switzerland, which I know is active in the EASA debates surrounding at least GA.
We have had a Norwegian CAA guy on the EASA MDM.032 group since the beginning of last year, though he had to step down recently purely for personal reasons.