The emissions reduction plan aims to put New Zealand on a path to achieve its long-term targets and contribute to global efforts to limit temperature rise to 1.5?C above pre-industrial levels. The actions in this plan enables New Zealand to meet its first emissions budget. This requires a reduction of an extra 11.5 mega tonnes of carbon dioxide equivalent (Mt CO2-e) between 2022 and 2025.
The plan builds on previous steps such as:

passing the Climate Change Response (Zero Carbon) Amendment Act in 2019
major reforms to the New Zealand Emissions Trading Scheme
the end of new offshore fossil fuel exploration
putting the public sector on the path to carbon neutrality by 2025
sustainable finance reforms such as introducing a world-first climate reporting legislation, changing default KiwiSaver providers and establishing the New Zealand Green Investment Finance
major investment in public transport and rail, as well as programmes to encourage New Zealanders to buy cleaner vehicles (e.g., Clean Vehicle Discount).