diff --git a/products/memcache/api.yaml b/products/memcache/api.yaml
index 636d38303f40..db7692d43e80 100644
--- a/products/memcache/api.yaml
+++ b/products/memcache/api.yaml
@@ -56,8 +56,7 @@ objects:
       - !ruby/object:Api::Type::String
         name: 'region'
         description: |
-          The name of the Memcache region of the instance.
-        required: true
+          The region of the Memcache instance. If it is not provided, the provider region is used.
         input: true
         url_param_only: true
     properties:
diff --git a/products/memcache/terraform.yaml b/products/memcache/terraform.yaml
index 85801e23b860..17142ddacf05 100644
--- a/products/memcache/terraform.yaml
+++ b/products/memcache/terraform.yaml
@@ -35,7 +35,7 @@ overrides: !ruby/object:Overrides::ResourceOverrides
         default_from_api: true
         is_set: true
       region: !ruby/object:Overrides::Terraform::PropertyOverride
-        ignore_read: true
+        default_from_api: true
       parameters: !ruby/object:Overrides::Terraform::PropertyOverride
         name: memcacheParameters
 
diff --git a/products/tpu/api.yaml b/products/tpu/api.yaml
index 4890d40fed03..25ec362224cd 100644
--- a/products/tpu/api.yaml
+++ b/products/tpu/api.yaml
@@ -55,8 +55,7 @@ objects:
       - !ruby/object:Api::Type::String # TODO: resourceref?
         name: 'zone'
         description: |
-          The GCP location for the TPU.
-        required: true
+          The GCP location for the TPU. If it is not provided, the provider zone is used.
         input: true
         url_param_only: true
     properties:
diff --git a/products/tpu/terraform.yaml b/products/tpu/terraform.yaml
index 24b6da832f20..ae50962c52b8 100644
--- a/products/tpu/terraform.yaml
+++ b/products/tpu/terraform.yaml
@@ -43,7 +43,7 @@ overrides: !ruby/object:Overrides::ResourceOverrides
         default_from_api: true
         diff_suppress_func: 'compareSelfLinkOrResourceName'
       zone: !ruby/object:Overrides::Terraform::PropertyOverride
-        ignore_read: true
+        default_from_api: true
     custom_code: !ruby/object:Provider::Terraform::CustomCode
       constants:  'templates/terraform/constants/tpu_node.erb'
       resource_definition: 'templates/terraform/resource_definition/tpu_node.erb'
diff --git a/products/vpcaccess/api.yaml b/products/vpcaccess/api.yaml
index 87b7caf91e35..ac2fa51a0379 100644
--- a/products/vpcaccess/api.yaml
+++ b/products/vpcaccess/api.yaml
@@ -57,8 +57,7 @@ objects:
       - !ruby/object:Api::Type::String
         name: 'region'
         description: |
-          Region where the VPC Access connector resides
-        required: true
+          Region where the VPC Access connector resides. If it is not provided, the provider region is used.
         input: true
         url_param_only: true
     properties:
diff --git a/products/vpcaccess/terraform.yaml b/products/vpcaccess/terraform.yaml
index fd81792c7481..c7c53a89fbd7 100644
--- a/products/vpcaccess/terraform.yaml
+++ b/products/vpcaccess/terraform.yaml
@@ -42,6 +42,8 @@ overrides: !ruby/object:Overrides::ResourceOverrides
           function: 'validation.IntBetween(200, 1000)'
       state: !ruby/object:Overrides::Terraform::PropertyOverride
         exclude: false
+      region: !ruby/object:Overrides::Terraform::PropertyOverride
+        default_from_api: true
       selfLink: !ruby/object:Overrides::Terraform::PropertyOverride
         ignore_read: true
 
diff --git a/templates/terraform/examples/memcache_instance_basic.tf.erb b/templates/terraform/examples/memcache_instance_basic.tf.erb
index e65a789e389f..7125625de563 100644
--- a/templates/terraform/examples/memcache_instance_basic.tf.erb
+++ b/templates/terraform/examples/memcache_instance_basic.tf.erb
@@ -22,7 +22,6 @@ resource "google_service_networking_connection" "private_service_connection" {
 resource "google_memcache_instance" "<%= ctx[:primary_resource_id] %>" {
   provider = google-beta
   name = "<%= ctx[:vars]["instance_name"] %>"
-  region = "us-central1"
   authorized_network = google_service_networking_connection.private_service_connection.network
 
   node_config {
diff --git a/templates/terraform/examples/vpc_access_connector.tf.erb b/templates/terraform/examples/vpc_access_connector.tf.erb
index 28118a7bb2a2..1a9e997c5400 100644
--- a/templates/terraform/examples/vpc_access_connector.tf.erb
+++ b/templates/terraform/examples/vpc_access_connector.tf.erb
@@ -1,6 +1,5 @@
 resource "google_vpc_access_connector" "connector" {
   name          = "<%= ctx[:vars]['name'] %>"
-  region        = "us-central1"
   ip_cidr_range = "10.8.0.0/28"
   network       = "default"
 }