Who can initiate an optional referendum at the national level?

New Zealand
- Government
- Registered electors
Referenda (Postal Voting) Act 2000; (Enacted on 14 November 2000)
Article 3, government initiated referendum means an indicative referendum.
(a)that the New Zealand Government initiates; and
(b)that is specified in an Order in Council made under section 5(a) as an indicative referendum that must be conducted by postal voting
Citizens Initiated Referenda Act 1993 ( Enacted on 28 September 1993)
Article 3. Indicative referendum petition.
A petition seeking the holding of an indicative referendum may, in accordance with this Act, be presented to the House of Representatives.
The Governor-in-council and the Cabinet are responsible for initiating government-initiated referenda. Any elector may initiate a citizen initiated referenda.