diff --git a/yaml/xyz/openbmc_project/Inventory/Item/PowerSupply.interface.yaml b/yaml/xyz/openbmc_project/Inventory/Item/PowerSupply.interface.yaml
index 30e32a8..0d77ef0 100644
--- a/yaml/xyz/openbmc_project/Inventory/Item/PowerSupply.interface.yaml
+++ b/yaml/xyz/openbmc_project/Inventory/Item/PowerSupply.interface.yaml
@@ -1,2 +1,11 @@
 description: >
     Implement to provide PowerSupply attributes.
+
+associations:
+    - name: powering
+      description: >
+          Objects that implement PowerSupply can optionally implement the
+          'powering' association to provide a link back to a Chassis.
+      reverse_name: powered_by
+      required_endpoint_interfaces:
+          - xyz.openbmc_project.Inventory.Item.Chassis