After 1990 the Office undertook different measures to achieve success in terms of International standards of Auditing. This was done through various means but was primarily driven by a Swedish International Development Agency (SIDA) intervention to introduce International Audit Standards in 1994. All audits, since 2010, are based on International Standards for Supreme Audit Institutions (ISSAIs) and the OAG subjects itself every three years to quality assurance peer reviews.