The plan should say how items the customer provides (for example software, data, information, intellectual property, services, material, tooling or test equipment) are identified and kept under control, how they are checked against specified requirements, how customer-supplied items that do not conform are controlled, and how items that are damaged, lost or unsuitable are controlled (ISO/IEC 17799 for information security).
This control maps to 2 controls across 2 other frameworks. If you already hold one of them, the evidence you collected for it is the starting point here rather than new work.
Every mapping shown was judged rather than inferred from wording similarity, and the ones that failed review are published too. See the coverage reports and what was rejected.
The graph holds this control, the 2 it maps to, and the evidence behind each claim, over MCP and REST.