diff --git a/xyz/openbmc_project/Control/CFMLimit.interface.yaml b/xyz/openbmc_project/Control/CFMLimit.interface.yaml
new file mode 100644
index 0000000..5946f3c
--- /dev/null
+++ b/xyz/openbmc_project/Control/CFMLimit.interface.yaml
@@ -0,0 +1,10 @@
+description: >
+    Implement to provide a CFM upper limit for fan control.
+    This can be used with a CFM algorithm to calculate the
+    maximum allowed fan speed for a system.
+
+properties:
+    - name: Limit
+      type: double
+      description: >
+          The CFM limit, 0 means disabled.