Issues in relation to which referendums are optional at the national level

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. (...)

Theconstitution only specifies that each optional referendum must be provided forby an Act. Parliament can choose to hold a referendum on any issue of itschoosing.