What can be brought to a referendum?
Germany
BASIC LAW OF THEFEDERAL REPUBLIC OF GERMANY
(Adopted1949; last amended 2010)
http://www.gesetze-im-internet.de/englisch_gg/englisch_gg.html
Article 146 [Duration of the Basic Law]
This Basic Law, which since the achievement of theunity and freedom of Germany applies to the entire German people, shall ceaseto apply on the day on which aconstitution freely adopted by the German people takes effect.
Replacementof Basic Law (constitution) by a new constitution / total revision is subjectto a mandatory referendum.