Prepare for FedRAMP LI-SaaS with less manual effort

FedRAMP Tailored LI-SaaS is the US government's lighter route for low-impact software-as-a-service products used by federal agencies. Under Rev. 5 it uses the same 156 NIST SP 800-53 Rev. 5 controls and enhancements as the FedRAMP Low baseline, but fewer of them must be independently tested, with the rest attested to or documented. It suits SaaS that holds no personal data beyond login details.

A cloud service qualifies for LI-SaaS when it is a software-as-a-service offering that an agency can use at low impact and that stores no personally identifiable information beyond what is needed to log in, such as username, password and email address. If the service holds any other personal data, or supports higher-impact data, it needs the full Low, Moderate or High baseline instead.

The control set is the main thing they share and the assessment effort is the main difference. Both Rev. 5 baselines contain the same 156 controls and enhancements, but LI-SaaS lowers the number of controls that must be tested and verified by an independent assessor, letting the provider attest to or document the remainder. LI-SaaS is limited to low-impact SaaS with no personal data beyond login information.

FedRAMP 20x and the Consolidated Rules for 2026 replace impact-level labels with Certification Classes A to D. FedRAMP has said Class B initially maps to the historical Low and LI-SaaS requirements. The 20x Class B pipeline opened on 31 August 2026, the rules become mandatory on 1 January 2027, and FedRAMP plans to stop accepting new Rev. 5 certifications on 11 June 2027.

There is no fine, but the commercial consequence is significant. Federal agencies are expected to use FedRAMP-certified cloud services, so a SaaS product without certification usually cannot be adopted for agency work. Certified providers that fail to keep up continuous monitoring and annual assessment obligations also risk losing their status on the FedRAMP Marketplace, and with it their federal customers.

They overlap heavily but are not interchangeable. SOC 2 and ISO 27001 cover many of the same areas as LI-SaaS, such as access control, logging, incident response and supplier risk, so existing evidence can be reused. LI-SaaS still requires NIST SP 800-53 Rev. 5 control implementation statements, FedRAMP-specific parameters and an independent assessment before an agency will rely on it.

Most providers confirm their service meets the LI-SaaS criteria, find an agency sponsor, implement the 156 controls, and prepare a system security plan using the LI-SaaS Appendix A control requirements. An independent assessor then tests the required controls, the agency reviews the package and issues an authority to operate, and the provider keeps up continuous monitoring and an annual assessment afterwards.

FedRAMP Tailored LI-SaaS (Rev. 5) is mapped in OneClickComply's control library and is available on request. Once enabled, its controls link to the same evidence, policies and monitoring you already use for frameworks such as SOC 2, ISO 27001 or NIST SP 800-53. OneClickComply does not issue FedRAMP certifications: those come from FedRAMP and sponsoring agencies after independent assessment.