diff --git a/google-cloud-pubsub-v1/lib/google/cloud/pubsub/v1/subscription_admin/client.rb b/google-cloud-pubsub-v1/lib/google/cloud/pubsub/v1/subscription_admin/client.rb
index 71fa6e5bcede..d23fde15b89a 100644
--- a/google-cloud-pubsub-v1/lib/google/cloud/pubsub/v1/subscription_admin/client.rb
+++ b/google-cloud-pubsub-v1/lib/google/cloud/pubsub/v1/subscription_admin/client.rb
@@ -429,6 +429,8 @@ def logger
             #     resource. For example:
             #       "123/environment": "production",
             #       "123/costCenter": "marketing"
+            #     See https://docs.cloud.google.com/pubsub/docs/tags for more information on
+            #     using tags with Pub/Sub resources.
             #
             # @yield [response, operation] Access the result along with the RPC operation
             # @yieldparam response [::Google::Cloud::PubSub::V1::Subscription]
@@ -1586,6 +1588,8 @@ def list_snapshots request, options = nil
             #     resource. For example:
             #       "123/environment": "production",
             #       "123/costCenter": "marketing"
+            #     See https://docs.cloud.google.com/pubsub/docs/tags for more information on
+            #     using tags with Pub/Sub resources.
             #
             # @yield [response, operation] Access the result along with the RPC operation
             # @yieldparam response [::Google::Cloud::PubSub::V1::Snapshot]
diff --git a/google-cloud-pubsub-v1/lib/google/cloud/pubsub/v1/topic_admin/client.rb b/google-cloud-pubsub-v1/lib/google/cloud/pubsub/v1/topic_admin/client.rb
index 0aac4cd2eed9..e927490db766 100644
--- a/google-cloud-pubsub-v1/lib/google/cloud/pubsub/v1/topic_admin/client.rb
+++ b/google-cloud-pubsub-v1/lib/google/cloud/pubsub/v1/topic_admin/client.rb
@@ -308,6 +308,8 @@ def logger
             #     resource. For example:
             #       "123/environment": "production",
             #       "123/costCenter": "marketing"
+            #     See https://docs.cloud.google.com/pubsub/docs/tags for more information on
+            #     using tags with Pub/Sub resources.
             #
             # @yield [response, operation] Access the result along with the RPC operation
             # @yieldparam response [::Google::Cloud::PubSub::V1::Topic]
diff --git a/google-cloud-pubsub-v1/proto_docs/google/pubsub/v1/pubsub.rb b/google-cloud-pubsub-v1/proto_docs/google/pubsub/v1/pubsub.rb
index 3ce2a2024198..7de68f6560b7 100644
--- a/google-cloud-pubsub-v1/proto_docs/google/pubsub/v1/pubsub.rb
+++ b/google-cloud-pubsub-v1/proto_docs/google/pubsub/v1/pubsub.rb
@@ -830,6 +830,8 @@ class MessageTransform
         #     resource. For example:
         #       "123/environment": "production",
         #       "123/costCenter": "marketing"
+        #     See https://docs.cloud.google.com/pubsub/docs/tags for more information on
+        #     using tags with Pub/Sub resources.
         class Topic
           include ::Google::Protobuf::MessageExts
           extend ::Google::Protobuf::MessageExts::ClassMethods
@@ -1249,6 +1251,8 @@ class DetachSubscriptionResponse
         #     resource. For example:
         #       "123/environment": "production",
         #       "123/costCenter": "marketing"
+        #     See https://docs.cloud.google.com/pubsub/docs/tags for more information on
+        #     using tags with Pub/Sub resources.
         class Subscription
           include ::Google::Protobuf::MessageExts
           extend ::Google::Protobuf::MessageExts::ClassMethods
@@ -2044,6 +2048,8 @@ class SubscriptionProperties
         #     resource. For example:
         #       "123/environment": "production",
         #       "123/costCenter": "marketing"
+        #     See https://docs.cloud.google.com/pubsub/docs/tags for more information on
+        #     using tags with Pub/Sub resources.
         class CreateSnapshotRequest
           include ::Google::Protobuf::MessageExts
           extend ::Google::Protobuf::MessageExts::ClassMethods