diff --git a/custom-words.txt b/custom-words.txt
index a7612d9bf3b2..b52519ec1fe3 100644
--- a/custom-words.txt
+++ b/custom-words.txt
@@ -2719,4 +2719,5 @@ xlargerc
 largerc
 mediumrc
 smallrc
-Autotune
\ No newline at end of file
+Autotune
+guardrailsversions
\ No newline at end of file
diff --git a/specification/containerservice/resource-manager/Microsoft.ContainerService/preview/2022-08-02-preview/examples/GuardrailsVersions_List.json b/specification/containerservice/resource-manager/Microsoft.ContainerService/preview/2022-08-02-preview/examples/GuardrailsVersions_List.json
new file mode 100644
index 000000000000..b3b7792c3ab7
--- /dev/null
+++ b/specification/containerservice/resource-manager/Microsoft.ContainerService/preview/2022-08-02-preview/examples/GuardrailsVersions_List.json
@@ -0,0 +1,17 @@
+{
+  "parameters": {
+    "api-version": "2022-08-02-preview",
+    "subscriptionId": "subid1",
+    "resourceGroupName": "rg1",
+    "resourceName": "clustername1"
+  },
+  "responses": {
+    "200": {
+      "body": {
+        "version": "v1",
+        "isPreview": true,
+        "default": true
+      }
+    }
+  }
+}
diff --git a/specification/containerservice/resource-manager/Microsoft.ContainerService/preview/2022-08-02-preview/managedClusters.json b/specification/containerservice/resource-manager/Microsoft.ContainerService/preview/2022-08-02-preview/managedClusters.json
index 2bf0a6b2a0f6..a744b54ae6d7 100644
--- a/specification/containerservice/resource-manager/Microsoft.ContainerService/preview/2022-08-02-preview/managedClusters.json
+++ b/specification/containerservice/resource-manager/Microsoft.ContainerService/preview/2022-08-02-preview/managedClusters.json
@@ -2891,6 +2891,48 @@
           }
         }
       }
+    },
+    "/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.ContainerService/managedClusters/{resourceName}/guardrailsversions": {
+      "get": {
+        "tags": [
+          "guardrailsVersions"
+        ],
+        "operationId": "GuardrailsVersions_List",
+        "summary": "List available guardrails versions.",
+        "parameters": [
+          {
+            "$ref": "../../../../../common-types/resource-management/v3/types.json#/parameters/ApiVersionParameter"
+          },
+          {
+            "$ref": "../../../../../common-types/resource-management/v3/types.json#/parameters/SubscriptionIdParameter"
+          },
+          {
+            "$ref": "../../../../../common-types/resource-management/v3/types.json#/parameters/ResourceGroupNameParameter"
+          },
+          {
+            "$ref": "#/parameters/ResourceNameParameter"
+          }
+        ],
+        "responses": {
+          "200": {
+            "description": "OK",
+            "schema": {
+              "$ref": "#/definitions/ListGuardrailsVersionsResponse"
+            }
+          },
+          "default": {
+            "description": "Error details",
+            "schema": {
+              "$ref": "#/definitions/CloudError"
+            }
+          }
+        },
+        "x-ms-examples": {
+          "List Guardrails versions": {
+            "$ref": "./examples/GuardrailsVersions_List.json"
+          }
+        }
+      }
     }
   },
   "definitions": {
@@ -6979,6 +7021,65 @@
       "required": [
         "enabled"
       ]
+    },
+    "GuardrailsProfile": {
+      "type": "object",
+      "properties": {
+        "systemExcludedNamespaces": {
+          "readOnly": true,
+          "type": "array",
+          "description": "List of namespaces specified by AKS to be excluded from Guardrails",
+          "items": {
+            "type": "string"
+          }
+        },
+        "version": {
+          "type": "string",
+          "description": "The version of constraints to use"
+        },
+        "level": {
+          "type": "string",
+          "enum": [
+            "Off",
+            "Warning",
+            "Enforcement"
+          ],
+          "x-ms-enum": {
+            "name": "level",
+            "modelAsString": true
+          },
+          "description": "The guardrails level to be used. By default, Guardrails is enabled for all namespaces except those that AKS excludes via systemExcludedNamespaces"
+        },
+        "excludedNamespaces": {
+          "description": "List of namespaces excluded from guardrails checks",
+          "type": "array",
+          "items": {
+            "type": "string"
+          }
+        }
+      },
+      "required": [
+        "level",
+        "version"
+      ],
+      "description": "The Guardrails profile."
+    },
+    "ListGuardrailsVersionsResponse": {
+      "type": "object",
+      "properties": {
+        "version": {
+          "readOnly": true,
+          "type": "string"
+        },
+        "isPreview": {
+          "type": "boolean",
+          "description": "Describes whether this version is in preview"
+        },
+        "default": {
+          "type": "boolean",
+          "description": "Describes whether this version is default"
+        }
+      }
     }
   },
   "parameters": {