diff --git a/products/accesscontextmanager/api.yaml b/products/accesscontextmanager/api.yaml
index 338d2e0e688d..b8eabbcd70da 100644
--- a/products/accesscontextmanager/api.yaml
+++ b/products/accesscontextmanager/api.yaml
@@ -286,6 +286,13 @@ objects:
                     name: 'requireCorpOwned'
                     description: |
                       Whether the device needs to be corp owned.
+              - !ruby/object:Api::Type::Array
+                name: 'regions'
+                description: |
+                  The request must originate from one of the provided
+                  countries/regions.
+                  Format: A valid ISO 3166-1 alpha-2 code.
+                item_type: Api::Type::String
   - !ruby/object:Api::Resource
     name: 'ServicePerimeter'
     # This is an unusual API, so we need to use a few fields to map the methods
diff --git a/templates/terraform/examples/access_context_manager_access_level_basic.tf.erb b/templates/terraform/examples/access_context_manager_access_level_basic.tf.erb
index 6a1f8feb3867..26f57256e105 100644
--- a/templates/terraform/examples/access_context_manager_access_level_basic.tf.erb
+++ b/templates/terraform/examples/access_context_manager_access_level_basic.tf.erb
@@ -10,6 +10,11 @@ resource "google_access_context_manager_access_level" "<%= ctx[:primary_resource
           os_type = "DESKTOP_CHROME_OS"
         }
       }
+      regions = [
+	"CH",
+	"IT",
+	"US",
+      ]
     }
   }
 }
diff --git a/templates/terraform/examples/access_context_manager_service_perimeter_basic.tf.erb b/templates/terraform/examples/access_context_manager_service_perimeter_basic.tf.erb
index a368b2bce7a9..75f2253a2795 100644
--- a/templates/terraform/examples/access_context_manager_service_perimeter_basic.tf.erb
+++ b/templates/terraform/examples/access_context_manager_service_perimeter_basic.tf.erb
@@ -19,7 +19,12 @@ resource "google_access_context_manager_access_level" "access-level" {
           os_type = "DESKTOP_CHROME_OS"
         }
       }
-    }
+      regions = [
+	"CH",
+	"IT",
+	"US",
+      ]
+  }
   }
 }
 
diff --git a/third_party/terraform/tests/resource_access_context_manager_access_level_test.go.erb b/third_party/terraform/tests/resource_access_context_manager_access_level_test.go.erb
index f4e94949c27c..79285803c46d 100644
--- a/third_party/terraform/tests/resource_access_context_manager_access_level_test.go.erb
+++ b/third_party/terraform/tests/resource_access_context_manager_access_level_test.go.erb
@@ -152,6 +152,10 @@ resource "google_access_context_manager_access_level" "test-access" {
           os_type = "DESKTOP_CHROME_OS"
         }
       }
+      regions = [
+        "IT",
+        "US",
+      ]
     }
   }
 }