Legality of European cards

By iloveMRT, in Android: Netrunner Organized Play

We all know that in Europe we have multilingual cards edition. I wonder if organizer of a tournament of the highest prestige like Regionals or Nationals is allowed to make restrictions about the cards language? In Europe we often travel abroad to participate in tournaments and many players have they native cards. In this case thy could feel crippled if the ruling banning their national cards in another country is possible. Is there any official ruling about it?

Some have tried, but they backed down. It's better for everyone if everyone can play.

Well I am in the middle of this type of situation at the moment that is why I hope maybe FFG make a statement to at least clarify the rules.

I have heard that the polish distributor will drop and not produce new cards in polish? Is this correct?