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NAO meaning

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What does NAO mean?
NAO refers to the UK National audit Office, the independent auditor of central government departments, executive agencies and most non-departmental public bodies (for example, the Nuclear Decommissioning Authority). Led by the Comptroller and Auditor General (C&AG), a statutory office, the NAO gives financial audit opinions (including on regularity) and produces value-for-money reports on the economy, efficiency and effectiveness of government policies and programmes, supporting scrutiny by Parliament’s Public Accounts Committee. The NAO is established and its functions are set out principally in the National Audit Act 1983 and the Budget Responsibility and National Audit Act 2011. Usage is consistent across the UK when referring to UK central government bodies; devolved public sector audits are carried out by Audit Scotland (Scotland), the Auditor General for Wales/Wales Audit Office (Wales) and the Northern Ireland Audit Office (Northern Ireland). In Ireland, the equivalent body is the Office of the Comptroller and Auditor General. NAO reports are commonly cited in public law, procurement, governance and regulatory matters as evidence on public spending, performance and compliance.
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View the related Practice Notes about NAO

PRACTICE NOTES
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