The PASO head office is in Port Vila, Vanuatu headed by the General Manager who oversees the running of the office. There are three (3) aviation inspectors specialised in Airworthiness, Aviation Security and Flight Operations. The inspectors provide technical assistance to the Pacific Islands Civil Aviation Safety and Security Treaty (PICASST) member states.

PASO exists to:

• to meet the requirements of the member states in the provision of aviation safety and security regulatory oversight services, in accordance with PICASST
• to undertake the purpose of the organisation in a manner which is cost effective and sustainable in the long term;  to utilise coordinated and collaborative business and inspection methods to minimise the costs of safety and security oversight to participating states and the aviation industry
• to support the aviation industry in participating states by the provision of timely advice and guidance in matters of aviation safety and security; and
• to promote an internationally recognised standard of aviation safety and security excellence, based on ICAO Standards and Recommended Practices (SARPS), within the Pacific Islands region.

As the host nation for PASO, the Vanuatu Government has provided funding for four support staff.