Reporting of performance information on public sector services has increase
d substantially in recent years. The audit of such information however is s
till relatively uncommon. In 1989 the Audit Office in New Zealand was confr
onted with a legislative requirement to audit Statements of Service Perform
ance (SSPs), This paper backgrounds New Zealand's shift in emphasis from pr
ogram effectiveness audits to the audit of non-financial performance inform
ation, describes the development of audit methodology in this area and iden
tifies lessons learned.