Replace broad assurances with service-specific duties
A statement that a provider handles compliance leaves important questions unanswered. A customer responsibility matrix, or CRM, identifies how duties are divided between the organization and the external service provider for the services used. Under 32 CFR 170.19, the relevant provider relationship and services are documented in the SSP and described in the provider service description and CRM. Begin with the actual offering, configuration, and contract. A company can sell several services with different responsibilities, so a generic corporate brochure is a weak substitute for a matrix that matches the deployed arrangement.
Write responsibilities as observable actions
For each applicable area, describe the action, the party performing it, the party approving it, and the evidence available. For account management, a provider might implement approved changes while the contractor authorizes access and reports departures. For patching, clarify supported devices, exceptions, approval of disruptive changes, and reporting. Avoid a single shared label that conceals several separate tasks. Reference the relevant requirement or objective without copying it as the complete description of the service. The matrix should let both teams explain how a responsibility is performed and where a reviewer can verify it.
Include information and security dependencies
Document whether the provider processes, stores, or transmits CUI or security protection data. These facts matter to provider treatment under the CMMC scoping rule. Identify cloud services separately and review the applicable requirements for the specific offering where CUI is involved. Include subcontracted services, support access, and administrative tools that affect the assessed environment. A CRM cannot override a regulation or make an otherwise unsuitable service acceptable. Its purpose is to record the operating allocation and expose gaps that the contractor and provider must resolve before relying on the arrangement.
Agree on assessment cooperation
Ask what artifacts the provider can supply, who explains the service to an assessor, how access is requested, and what restrictions apply. Clarify lead times and the treatment of proprietary provider information. A contractual promise to maintain security can still leave the contractor without usable evidence. Record alternatives where a document cannot be directly shared, such as an authorized demonstration or another appropriate assessment arrangement. Coordinate these details with the required assessment pathway. The contractor should understand what it will be able to substantiate without claiming that an outside provider certificate automatically covers every service and customer configuration.
Resolve gaps before approving the matrix
Review rows where neither party has accepted responsibility and rows where both assume the other performs a task. Ask the operational staff to validate the allocation alongside legal or commercial reviewers. Include incident escalation, change notification, access removal, backup handling, and evidence updates when relevant to the service. Record the effective date and the service version or scope the matrix covers. These are practical governance steps rather than a prescribed federal template. A signed matrix has limited value if its descriptions are inconsistent with the actual configuration, contract, or daily support process.
Connect the CRM to the SSP and work plan
Reference the approved matrix in the SSP, then assign the contractor work that remains to named internal roles. Revisit it when changing licenses, adding a location, or transferring administration. CMMC Pulsar can be evaluated as a place to connect scope, control mapping, evidence, and documentation; ask specifically how your team would reference provider duties and revisions in that workflow. Federal Bid Partners readiness support can be discussed around coordinating those tasks and records. The organization remains accountable for its representations, and a CRM or readiness engagement does not replace the required assessment.