The public service supports:
— the Government to develop and implement its policies, deliver high-quality and efficient public services, and meet the needs of New Zealanders; and
— constitutional and democratic government, and acts with a spirit of service to the community and in accordance with the law.

Section 11, Public Service Act 2020 — New Zealand Legislation

The public service supports current and future governments to:

Achieve outcomes — improve these outcomes through the services provided by individual organisations, and also by joining up around critical issues or priorities identified by the Government.

Improve services — to provide both face-to-face and digital services that are easy and convenient to interact with and are fully organised around peoples needs.

Promote democratic and open government — improving transparency, increasing civic participation and using new technologies to make the government more open, effective, and accountable.

Support the Crown in its relationships with Māori — developing and maintaining the capability of the Public Service to engage with Māori and to understand Māori perspectives.