JASANZ was established by International treaty titled Agreement between Australia and New Zealand concerning the Establishment of the Council of the Joint Accreditation System of Australia and New Zealand (JASANZ) signed in Canberra on 30 October 1991, to strengthen the trading relationship between the two countries and with other countries.

[1] Accreditation adds value to the ever growing and increasingly complicated market chain in many ways, including by providing a symbol of assurance that certifiers and inspectors are independent and competent to perform their duties.

[2] JASANZ accredits the bodies that certify or inspect organisations, products or people.

They do so by developing the assessment criteria certifiers and inspectors must meet to become accredited under these themes: JASANZ offers accreditation for the following programs: JASANZ has accredited over 130 conformity assessment bodies (as of 2021) who have certified over 140,000 organisations in over 100 countries.

JASANZ is a member of the International Accreditation Forum (IAF), the International Laboratory Accreditation Cooperation (ILAC) and the Asia Pacific Accreditation Cooperation (APAC).