Compliance
FedRAMP Authorization: What Cloud Service Providers and Their Customers Need to Know
FedRAMP is the federal government’s standardized security authorization program for cloud services. If your organization sells to federal agencies — or supports defense contractors who do — FedRAMP authorization is increasingly a prerequisite for contract eligibility rather than a differentiator. This guide covers the authorization process, impact levels, the FedRAMP 20x modernization program, and what organizations on both sides of the authorization relationship need to understand to manage their compliance posture.
What Is FedRAMP and Why Does It Exist?
The Federal Risk and Authorization Management Program (FedRAMP) was established by the Office of Management and Budget in 2011 to provide a standardized approach to security assessment, authorization, and continuous monitoring for cloud products and services used by federal agencies. Before FedRAMP, each federal agency conducted its own security review of cloud vendors — a process that was expensive, duplicative, and produced inconsistent results.
FedRAMP’s “authorize once, use many” model allows a cloud service provider (CSP) that obtains authorization to reuse that authorization across multiple federal agency customers. For agencies, it provides a standardized evidence package. For CSPs, it eliminates the need to undergo separate security reviews for each agency customer — though individual agency authorizations are still possible under some pathways.
FedRAMP is administered by the General Services Administration (GSA) through the FedRAMP Program Management Office (PMO). The authorizing authority for a specific authorization can be either a Joint Authorization Board (JAB) — consisting of representatives from DoD, DHS, and GSA — or an individual federal agency acting as the Authorizing Official (AO).
For the broader compliance landscape, including CMMC requirements that interact with FedRAMP for defense contractors, see armorstack.ai/compliance/ and /cmmc/.
FedRAMP Impact Levels: Low, Moderate, and High
FedRAMP authorizations are issued at one of three impact levels, derived from FIPS 199 categorization of the information the cloud service will process, store, or transmit. The impact level determines the control baseline — the specific set of NIST SP 800-53 controls the CSP must implement and document.
FedRAMP Low
The Low baseline applies to cloud services handling federal information where the unauthorized disclosure, modification, or loss of that information would have a limited adverse effect on agency operations, assets, or individuals. There are approximately 125 controls in the Low baseline. FedRAMP Low is appropriate for public-facing, non-sensitive information systems — websites, collaboration tools without sensitive data, and similar services.
FedRAMP Moderate
The Moderate baseline is the most common authorization level, covering cloud services that handle Controlled Unclassified Information (CUI) and similar sensitive but unclassified data. There are approximately 325 controls in the Moderate baseline. The vast majority of federal cloud services that process government data — financial systems, case management, HR applications, healthcare platforms — operate at the Moderate level. For defense contractors whose cloud services touch CUI, the relationship between FedRAMP Moderate and CMMC is addressed at /compliance/fedramp-vs-cmmc/.
FedRAMP High
The High baseline applies to cloud services handling the most sensitive unclassified data — where unauthorized access could cause severe adverse effects on national security, public health, or safety. This includes law enforcement data, healthcare records in federal systems, and financial data at scale. The High baseline contains approximately 420 controls. FedRAMP High authorizations are comparatively rare and significantly more demanding to achieve and maintain.
| Impact Level | Approximate Control Count | Typical Use Case | Data Sensitivity |
|---|---|---|---|
| Low | ~125 | Public-facing systems, non-sensitive data | Limited adverse effect if compromised |
| Moderate | ~325 | CUI, HR, financial, most agency cloud systems | Serious adverse effect if compromised |
| High | ~420 | Law enforcement, national security, federal health systems | Severe or catastrophic adverse effect if compromised |
The FedRAMP Authorization Process
FedRAMP authorization is not a certification a CSP earns from a testing organization. It is a government authorization decision made by an Authorizing Official — either through the JAB process or through an agency-specific authorization. Understanding this distinction matters because it shapes the timeline, the evidence requirements, and the ongoing obligations that come with authorization.
The Two Main Authorization Pathways
Agency Authorization: A federal agency sponsors a CSP’s authorization. The agency provides a government point of contact (ISSO), works with the CSP and a FedRAMP-recognized Third Party Assessment Organization (3PAO) to develop the security assessment package, and the agency’s Authorizing Official makes the authorization decision. Agency authorizations are then listed in the FedRAMP Marketplace, making them available to other agencies. This is the most common pathway.
JAB Provisional Authorization (P-ATO): The Joint Authorization Board reviews the security package and issues a Provisional Authorization to Operate. JAB P-ATO is reserved for the highest-demand, highest-priority cloud services in the government marketplace. The JAB selects approximately 12 CSPs per year for this pathway based on demonstrated or potential government-wide use. Most CSPs pursue agency authorization.
The full step-by-step authorization process — including the FedRAMP Ready designation, 3PAO selection, System Security Plan (SSP) development, and Authorization to Operate (ATO) issuance — is addressed in detail at /compliance/fedramp-authorization-process/.
Continuous Monitoring After Authorization
Authorization is not the finish line. FedRAMP Continuous Monitoring (ConMon) requirements obligate authorized CSPs to provide monthly vulnerability scan results, annual security assessment updates, and significant change notifications to their authorizing agency. Failure to meet ConMon requirements can result in authorization revocation. ConMon is where many CSPs underinvest: the operational discipline required to sustain authorization is substantial and ongoing.
Armorstack’s SENTRY managed detection and response program includes the continuous monitoring telemetry and evidence documentation that ConMon requires. Our CORE managed IT services provide the infrastructure control management and patching discipline that keeps vulnerability scan results in a defensible state month over month.
FedRAMP 20x: The Modernization Program
FedRAMP 20x is the GSA’s ongoing program to modernize the FedRAMP authorization process. The initiative, announced in 2024, addresses the primary operational complaints about traditional FedRAMP: the process is slow (often 12 to 24 months for initial authorization), expensive (industry estimates for initial authorization costs are commonly cited in the range of hundreds of thousands of dollars for Moderate), and produces documentation-heavy evidence packages that are difficult for agencies to evaluate efficiently.
FedRAMP 20x introduces several structural changes:
- Automated evidence collection: Machine-readable security data reduces reliance on static documentation and enables faster, more continuous assessment rather than point-in-time reviews.
- Standardized schemas: Common data formats for security artifacts allow agencies and the PMO to process evidence programmatically.
- Reduced documentation burden: The program aims to shift from narrative-heavy System Security Plans toward evidence-based demonstrations of control effectiveness.
- Faster timelines: The stated goal is to substantially reduce the time from initiation to authorization, though specific timeline commitments are subject to ongoing program development.
FedRAMP 20x is a significant directional shift, but organizations pursuing authorization in the near term should not defer action waiting for the program to fully mature. The core control requirements at each impact level remain the same; the evidentiary format and process are what is changing. See /compliance/fedramp-20x/ for current program status and what it means for CSPs planning their authorization roadmap.
FedRAMP and CMMC: The Defense Contractor Intersection
Defense contractors increasingly encounter both FedRAMP and CMMC requirements — sometimes on the same program. Understanding where the frameworks overlap and where they diverge prevents duplicate effort and compliance gaps. The full crosswalk is at /compliance/fedramp-vs-cmmc/ and /cmmc/.
The critical distinction: FedRAMP is a cloud service authorization program — it applies to the CSP providing the cloud service, not the organization consuming it. CMMC applies to defense contractors handling CUI, regardless of whether that data lives in a FedRAMP-authorized cloud or on-premises infrastructure. A defense contractor using a FedRAMP Moderate-authorized cloud service is not automatically CMMC-compliant; it means the cloud component of their CUI environment uses a service with a government-recognized security authorization, which is a prerequisite for many CMMC-compliant architectures but not the whole of compliance.
For defense contractors whose cloud infrastructure requires FedRAMP authorization as a condition of their CUI handling environment, Armorstack’s VERITY advisory practice provides the CMMC preparation and cloud security governance support needed to align both frameworks.
FedRAMP for Organizations Buying Cloud Services
FedRAMP authorization obligations fall on cloud service providers — but federal agencies and their contractors have obligations too. Agencies are required to use FedRAMP-authorized cloud services for federal data. Contractors subject to CMMC and other federal cybersecurity requirements are expected to ensure that their cloud service selections support, rather than undermine, their compliance posture.
For organizations in the defense industrial base, this means conducting due diligence on cloud services before deploying them in CUI-handling environments. A cloud service that is not FedRAMP authorized at the appropriate impact level for the data it will handle creates a compliance gap that neither the vendor’s SOC 2 report nor their marketing materials can close.
Armorstack advises clients on cloud service selection as part of the VERITY engagement model — evaluating both FedRAMP authorization status and the specific control implementations of candidate services against the client’s actual compliance requirements. This work is addressed through our broader compliance advisory offering at armorstack.ai/compliance/.
Investment levels for FedRAMP authorization engagements vary substantially based on impact level, current security program maturity, and the extent of existing NIST 800-53 control documentation. Moderate-level authorizations are typically the most significant investment point in the market, with costs driven primarily by 3PAO assessment fees, documentation development, and the ongoing ConMon program. For an accurate estimate of the advisory support and managed services required for your specific situation, contact our team or start the 90-Day Proof to establish a baseline for your current security posture.