FedRAMP Compliance: Cloud Security Authorization for Federal Agencies
FedRAMP is the government-wide standard for assessing and authorizing cloud services that federal agencies rely on. For cloud service providers, it is frequently the single largest gate between a signed federal opportunity and revenue. Armorstack’s VERITY advisory practice guides CSPs and their federal supply-chain partners through readiness, documentation, and continuous monitoring.
FedRAMP (Federal Risk and Authorization Management Program) is a standardized, government-wide security assessment and authorization process for cloud products and services used by federal agencies. It exists so that a cloud service provider is assessed once against a consistent NIST SP 800-53 control baseline, rather than every agency running its own separate security review of the same product. A CSP that completes FedRAMP authorization is listed in the FedRAMP Marketplace and can be adopted by other agencies with far less incremental review.
Who Actually Needs FedRAMP Authorization
FedRAMP applies to cloud service providers — companies building SaaS, platform, or infrastructure offerings — that want a federal civilian agency, or in many cases the Department of Defense, to use that service to process, store, or transmit federal information. If a federal agency is a customer or prospective customer of a cloud offering, that offering generally needs to be assessed under FedRAMP before it can be used for anything beyond a narrow pilot.
The requirement also reaches down the federal supply chain. A subcontractor whose cloud product is embedded in, or integrated with, a system a prime contractor sells to a federal agency can be required to hold FedRAMP authorization (or rely on an already-authorized underlying platform) as a condition of that contract. Organizations frequently underestimate how far this obligation extends before a contract review surfaces it.
FedRAMP is a distinct obligation from CMMC, which governs defense contractors handling controlled unclassified information rather than cloud service providers themselves. See FedRAMP vs. CMMC for how the two frameworks interact when an organization is subject to both.
The Three Impact Levels
FedRAMP has historically scoped a cloud system’s control baseline using the FIPS 199 impact levels below. This labeling is one of the areas GSA’s FedRAMP 20x modernization effort is actively revising — see the note at the end of this section.
For systems where a breach would have limited adverse effect on operations, assets, or individuals. The smallest NIST SP 800-53 control baseline of the three levels, appropriate for lower-sensitivity public-facing or informational systems.
For systems where a breach would have serious adverse effect. This is the impact level pursued by the large majority of FedRAMP-authorized cloud services today, reflecting a substantially larger control baseline than Low.
For systems where a breach would have severe or catastrophic effect — the baseline most associated with law enforcement, emergency services, and financial systems data. It carries the largest NIST SP 800-53 control set of the three levels.
A note on evolving terminology: GSA’s FedRAMP 20x initiative and the associated 2026 Consolidated Rules are actively restructuring how systems are categorized and labeled, moving away from the Low/Moderate/High naming toward a new certification-class model, in part because the old labels were frequently confused with unrelated DoD impact-level terminology. The underlying idea — that the required control set scales with the sensitivity and consequence of a breach — is expected to persist, but organizations scoping a new authorization should confirm the current official terminology at FedRAMP.gov rather than relying on any single source, including this page, for the latest label names.
Agency Authorization vs. the FedRAMP Board
Agency Authorization is the more common path: a specific federal agency agrees to sponsor the CSP, reviews the completed security assessment package, and issues its own Authority to Operate (ATO) for that system. It is generally the practical starting point for a CSP that already has, or is pursuing, a specific agency customer.
JAB (Joint Authorization Board) review, historically composed of representatives from DoD, DHS, and GSA, has been reserved for cloud services expected to see broad demand across many agencies at once. Because it draws on limited board capacity, this path has typically been selective and reserved for services the government prioritizes for government-wide reuse.
Both paths still require an independent security assessment by an accredited Third Party Assessment Organization (3PAO) before an authorization decision is made. See the FedRAMP authorization process for the full sequence from readiness assessment through continuous monitoring, and FedRAMP 20x for how GSA’s modernization initiative is changing both the terminology and the timeline for these paths.
Armorstack’s Advisory Role in a FedRAMP Program
Armorstack does not act as a 3PAO and does not issue FedRAMP authorizations — that assessment must come from an accredited third party, and the authorization decision itself sits with the sponsoring agency or the FedRAMP Board. What Armorstack’s VERITY advisory practice does is prepare a CSP to succeed in that process: running a pre-assessment gap analysis against the applicable NIST SP 800-53 baseline, helping build out System Security Plan (SSP) documentation, and closing control gaps before a 3PAO ever begins its formal assessment.
SENTRY’s continuous monitoring capability then supports the post-authorization obligations FedRAMP requires on an ongoing basis — monthly vulnerability scanning cadence, log retention, and incident reporting — and CORE’s managed infrastructure services keep the underlying environment configured to the controls the SSP documents, so the gap between what is written down and what is actually running stays close to zero.
For organizations still determining whether FedRAMP, CMMC, or both apply to their business, start with FedRAMP vs. CMMC, or explore Armorstack’s full compliance frameworks coverage.
FedRAMP, Answered Straight
What is FedRAMP?
FedRAMP is the U.S. government’s standardized approach to security assessment, authorization, and continuous monitoring for cloud products and services used by federal agencies, administered by GSA and built on NIST SP 800-53.
Who needs FedRAMP authorization?
Cloud service providers selling to federal agencies, or sitting in the federal supply chain of a system an agency relies on, generally need FedRAMP authorization before that service can process federal information beyond a narrow pilot.
What are the FedRAMP impact levels?
Historically Low, Moderate, and High, each with a progressively larger NIST SP 800-53 control baseline. This labeling is being revised under GSA’s FedRAMP 20x initiative, so confirm current terminology at FedRAMP.gov.
What is the difference between Agency and JAB authorization?
Agency Authorization is sponsored by one agency that issues its own ATO. JAB/FedRAMP Board authorization is reserved for services with broad cross-government demand. Both require an independent 3PAO assessment.