As both a national charity and a limited company the NAS has to annually report its activities to the UK Charity Commission as well as to Companies House.

The NAS Statement of Principles recognises the non-renewable nature of cultural heritage wherever situated, supports all activities that further the recording, preservation and responsible management of the cultural heritage and respects the letter and spirit of national and international legislation.

As both a UK charity and a limited company, the NAS has policies it must enforce under the auspices of the Charity Commission and the Companies Act. The policies safeguard the work of the Society, its employees and its members.