Acts and regulations are available online through the New Zealand Legislation website. Acts are bills that have been passed by Parliament and have received the Royal assent. Regulations are not actions of the Parliament. Regulations are a law-making action made under the delegated authority of an Act.
For current bills and bills that were current from 2008 onwards, search the New Zealand Legislation website.
New Zealand historical bills are available on the New Zealand Legal Information Institute (NZLII) website. The volumes are from 1949 to 2008. The volumes will be added to over time and will extend back to 1854 when complete. The collection includes bills that became Acts as well as those that did not.