<P> In the early 1980s, National Party Prime Minister Rob Muldoon had lost the support of some of the MPs from his own party over several environmental issues . In particular, maverick National Party Members of Parliament Marilyn Waring and Mike Minogue threatened the slight government majority . In 1984, the opposition New Zealand Labour Party proposed the nuclear - free zone legislation . Muldoon strongly opposed the proposal, fearing it might compromise New Zealand's national security . However, as he failed to secure Marilyn Waring's support on the issue, and as the National Party had a majority of only one, Muldoon decided to call a snap election, the New Zealand general election, 1984, stating that Waring's "feminist anti-nuclear stance" threatened his ability to govern . Muldoon was famously drunk when he announced the election, and ignored warnings from party president Sue Wood that the party organisation was unprepared for a campaign . The National Party lost the election, and the Labour Party formed a new government . </P> <P> According to opinion polls taken before the 1984 election, 30 per cent of New Zealanders supported visits by US warships with a clear majority of 58 per cent opposed, and over 66 per cent of the population lived in locally declared nuclear free zones . Following the victory of the New Zealand Labour Party in elections in 1984, Prime Minister David Lange barred nuclear - powered or nuclear - armed ships from using New Zealand ports or entering New Zealand waters . Reasons given were the dangers of nuclear weapons, continued nuclear testing in the South Pacific, and opposition to US President Ronald Reagan's policy of aggressively confronting the Soviet Union . Given that the United States Navy refused to confirm or deny the presence of nuclear weapons aboard ships, these laws essentially refused access to New Zealand ports for all United States Navy ships . In February 1985, a port - visit request by the United States for the USS Buchanan was refused by the New Zealand government on the basis that the Buchanan was capable of launching nuclear depth bombs . An opinion poll commissioned by the 1986 Defence Committee of Enquiry confirmed that 92 per cent now opposed nuclear weapons in New Zealand and 69 per cent opposed warship visits; 92 per cent wanted New Zealand to promote nuclear disarmament through the UN, while 88 per cent supported the promotion of nuclear free zones . </P> <P> Under the New Zealand Nuclear Free Zone, Disarmament, and Arms Control Act 1987 territorial sea and land of New Zealand became nuclear free zones . The Act prohibits "entry into the internal waters of New Zealand 12 n . mi. (22.2 km / 13 - 13 / 16 st . mi .) radius by any ship whose propulsion is wholly or partly dependent on nuclear power" and bans the dumping of radioactive waste into the sea within the nuclear - free zone, as well as prohibiting any New Zealand citizen or resident "to manufacture, acquire, possess, or have any control over any nuclear explosive device ." Similar provisions were made for biological weapons . After this Act was passed by the Labour government of David Lange, the United States government suspended its ANZUS obligations to New Zealand . Following consultations with Australia and after negotiations with New Zealand broke down, the United States reiterated that it was suspending its treaty obligations until United States Navy ships were re-admitted to New Zealand ports, citing that New Zealand was "a friend, but not an ally". The crisis made front - page headlines for weeks in many American newspapers, while many leading American senators were quoted as expressing a deep sense of betrayal . However, David Lange did not withdraw New Zealand from ANZUS, although his government's policy led to the US's decision to suspend its treaty obligations to New Zealand . The legislation was a milestone in New Zealand's development as a nation and seen as an important act of sovereignty, self - determination and cultural identity . Further, many were driven by a sense of responsibility to support peace and the rights of all humans, not just in New Zealand, but worldwide . </P> <P> New Zealand has long maintained an independent foreign policy initiative, with various Governments ignoring American and other countries' policy demands . While New Zealand meets its international responsibilities towards maintaining global peace, its pacifist based anti-nuclear stance reflects the mainstream ideology held by the majority of its residents . New Zealand's opposition to nuclear weapons is rooted in the belief that the proliferation of such weapons of mass destruction does not reflect an attempt to preserve peace in the form of a nuclear deterrent . New Zealand's nuclear - free zone option looks to remove the nation from under the nuclear umbrella . </P>

Are there nuclear power plants in new zealand