FedRAMP Authorization: A Guide for Cloud Providers
If you want to sell a cloud product to a US federal agency, FedRAMP is the gate you have to pass. It standardises how the government assesses and authorises cloud services — and while the bar is high, an authorization opens the door to the largest IT buyer on earth.
Impact levels
FedRAMP baselines are built on NIST SP 800-53 and scaled by the impact a compromise would have on confidentiality, integrity and availability.
| Level | For | Controls (approx.) |
|---|---|---|
| Low / LI-SaaS | Public, low-sensitivity data | ~125 |
| Moderate | Most agency systems (CUI) | ~325 |
| High | Law enforcement, health, financial | ~420 |
Two paths to authorization
Agency sponsorship
A federal agency agrees to sponsor you and issues an Authority to Operate (ATO) after review. The most common route.
JAB / programme authorization
A central review grants a provisional authorization that any agency can leverage — higher bar, broader reach.
What the journey involves
- Categorise your system and select the right baseline.
- Implement the NIST 800-53 controls and write a System Security Plan (SSP).
- Engage a 3PAO to perform an independent security assessment.
- Remediate findings; produce the assessment report and POA&M.
- Receive your ATO — then sustain continuous monitoring (monthly).
The bottom line
FedRAMP is a marathon, not a sprint — but it’s also reusable: one authorization can be leveraged by many agencies, and the continuous-monitoring discipline it forces tends to raise your whole security programme. The teams that succeed treat the SSP and evidence as living artefacts, not a one-off submission.
Sustain FedRAMP continuous monitoring
Cyber Horizon tracks NIST 800-53 controls, automates evidence collection, and keeps your SSP and POA&M current — so monthly ConMon is a routine, not a fire drill.
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