The Act established the legal framework for New Zealand's anti-nuclear policy. The Act sets out the New Zealand Nuclear Free Zone consisting of all New Zealand territory (including ocean territory and airspace) and bans nuclear powered ships from entering into New Zealand waters. It also prohibits the acquisition, stationing and testing of nuclear explosive devices. Immunity from the law was granted to ships and aircraft exercising the right of innocent passage and/or the right of transit passage, as well as ships and aircraft in distress.