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IIA Three Lines Model (2020)

What is IIA Three Lines Model (2020)?

The IIA's principles-based model for organising governance roles: what the governing body, management (which carries first-line and second-line work), internal audit (the third line) and external assurance providers each contribute, how they stay independent yet aligned, and how together they create and protect value. It comprises 12 controls organised across 2 domains, and applies in International.

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Questions people ask about IIA Three Lines Model (2020)

What is IIA Three Lines Model (2020)?
The IIA's principles-based model for organising governance roles: what the governing body, management (which carries first-line and second-line work), internal audit (the third line) and external assurance providers each contribute, how they stay independent yet aligned, and how together they create and protect value.
How many controls does IIA Three Lines Model (2020) have?
IIA Three Lines Model (2020) contains 12 controls organized across 2 domains.
Where does IIA Three Lines Model (2020) apply?
IIA Three Lines Model (2020) applies in International. Organizations operating in or serving customers in this jurisdiction should check whether its requirements reach them.
Which version of IIA Three Lines Model (2020) is covered here?
This page covers The IIA's Three Lines Model, July 2020 (position paper; print updated September 2024).

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IIA Three Lines Model (2020), its 12 controls and every mapping into other standards are available over a REST endpoint and an MCP server, so an agent can read them directly. The free tier is 10 calls a day and needs no signup.

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Written and maintained by Gerard Blokdyk, The Art of Service.Last updated .