FedRAMP Authorization Process

FedRAMP authorization comes through one of two paths. The path determines who issues your authorization and how long it takes.

• Agency Authorization: A federal agency sponsors your CSO and grants an Authority to Operate (ATO). The agency conducts review with a 3PAO assessment. Other agencies can leverage the existing ATO. About 80% of FedRAMP authorizations follow this path.
• Joint Authorization Board (JAB) Authorization: The CIOs of DoD, DHS, and GSA jointly authorize through the JAB. More rigorous, broader visibility, and a Provisional Authorization (P-ATO) that any agency can use. About 20% of authorizations use this path, typically the largest CSPs.

For most cloud service providers, agency authorization is the practical starting point. Find a sponsor agency that needs your service, and pursue authorization with their sponsorship.

Cross-reference the FedRAMP framework reference for impact level details (Low, Moderate, High).

The FedRAMP authorization package consists of three primary documents:

1. System Security Plan (SSP): 800-1500 pages depending on impact level. Describes the cloud service, the boundary, and how each NIST 800-53 control is implemented. The SSP is the central document and the most time-consuming to write.
2. Security Assessment Report (SAR): 200-500 pages. Written by the 3PAO after assessing the CSO. Documents test methods, results, findings, and risk ratings.
3. Plan of Action and Milestones (POA&M): Lists every finding from the SAR with remediation plan, owner, and target date. Reviewed quarterly throughout authorization and post-authorization.

Supporting documents include policies, procedures, contingency plan, incident response plan, configuration management plan, control implementation summary, customer responsibility matrix (CRM), and continuous monitoring plan. Total package size easily exceeds 2000 pages.

Use FedRAMP-published templates for every document. Deviations from templates create review delays.

The full process runs through these stages:

1. Readiness assessment (3-6 months): Optional but recommended. A 3PAO reviews your environment and produces a Readiness Assessment Report (RAR) confirming you can pursue authorization.
2. FedRAMP Tailored or Ready designation (1-2 months): For low-impact or specific use cases, FedRAMP Tailored streamlines the process. "FedRAMP Ready" status indicates the CSO is prepared for full assessment.
3. Sponsor identification (variable): Find a federal agency willing to sponsor authorization. This step often takes longer than expected and depends on agency need.
4. SSP development (3-6 months): Write the System Security Plan with detailed control implementation narratives.
5. 3PAO assessment (3-4 months): 3PAO conducts the assessment, produces the SAR.
6. Agency or JAB review (3-6 months): Sponsor agency reviews the package, identifies risks, requests additional information.
7. Authorization decision: Agency issues ATO or JAB issues P-ATO.

Total elapsed time: 12-24 months from kickoff to authorization. Larger CSOs at High impact level can take longer.

The same problems delay most authorization efforts. Knowing them in advance prevents costly rework:

• Boundary too broad: Including out-of-scope services in the boundary blows up the control set and the assessment. Define the minimum boundary that delivers customer-facing functionality.
• Inheritance not documented: If your service runs on AWS GovCloud, document which controls inherit from AWS and which you implement. Vague inheritance fails review.
• FIPS 140-2 cryptography gaps: Every cryptographic module in scope needs FIPS validation. "AES-256 encryption" is not enough; the module must be on the validated modules list.
• POA&M without realistic dates: "Will fix by 2026" with no milestones fails. Each item needs intermediate milestones with dates.
• Continuous monitoring plan absent or thin: ConMon expectations are detailed. A weak ConMon plan signals immaturity to reviewers.
• Customer Responsibility Matrix (CRM) missing: Customers need to know what they are responsible for. The CRM documents shared responsibilities between CSO and customer.

Authorization is the start, not the end. Post-authorization, you operate under continuous monitoring (ConMon) requirements:

• Monthly reporting: Vulnerability scan results, POA&M updates, change requests
• Quarterly reporting: Detailed POA&M review, risk reassessment
• Annual assessment: 3PAO performs annual security assessment focused on changes
• Significant change management: Major changes (new region, new service, architecture changes) require security impact analysis and may require amendment to the authorization
• Incident response: Reportable incidents must be reported to FedRAMP and the sponsoring agency within specified timeframes

ConMon is staffing-intensive. Plan for a dedicated FedRAMP team post-authorization, not the same project team that built the authorization. The mindset shift from "build the package" to "operate the system" requires different skills.

Track ConMon obligations through the FedRAMP authorization tooling and your sponsor's required formats.