Legal provisions for optional referendums at national level
Finland
Answer
Yes
Source
THE FINNISH CONSTITUTION
(Adopted1999; last amended 2011)
http://www.finlex.fi/fi/laki/kaannokset/1999/en19990731.pdf
Section 53 ? Referendum and citizens? initiative (new title, 1112/2011,entry into force 1.3.2012)
The decision to organise a consultative referendum is made by an Act,which shall contain provisions on the time of the referendum and on the choicesto be presented to the voters.
Provisions concerning the conduct of a referendum arelaid down by an Act. (...)
