A plain-words guide to Authorization to Operate

ATO Evidence

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What Is Continuous Monitoring After an ATO?

October 12, 2026 · October 12, 2026

An ATO is a decision, not a finish line. Continuous monitoring keeps the controls behind that decision checked, reported, and updated over the life of the system.

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ato, reauthorization, nist

What Happens When an ATO Expires?

What an expired Authorization to Operate means, how reauthorization works, and how to stay covered.

October 09, 2026

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Who Signs an ATO?

Only one Risk Management Framework role can sign an Authorization to Operate.

October 07, 2026

ato, rmf, fedramp, authorization

How Long Does an ATO Take?

No official source gives a fixed ATO timeline. Here is what NIST SP 800-37 Rev. 2 and FedRAMP process docs say about phases and schedule drivers.

September 30, 2026

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