Legal provisions for optional referendums at national level

Tonga’s Constitution and electoral laws are consolidated to 1988with subsequent amending legislation listed by category and Act at these links:

http://crownlaw.gov.to/cms/index.php/legislation/current/all-alphabetically.html(Act of Constitution listed first)

http://crownlaw.gov.to/cms/index.php/legislation/current/all-by-category.html(electoral and related laws).