You are reminded that Swiss and French road traffic rules apply on the CERN site, the former on parts of the site located on Swiss territory and the latter on parts of the site located on French territory, including the French part of the Meryin site.

However, for logistical reasons and consistency, road signs follow Swiss standards on all parts of the Meyrin site. 

You are also reminded that daytime running lights must be switched on on the Swiss part of the CERN site and are highly recommended to be used on the French part as well.