diff --git a/google-cloud-pubsub/pom.xml b/google-cloud-pubsub/pom.xml
index b40f4ddde..85bb97b97 100644
--- a/google-cloud-pubsub/pom.xml
+++ b/google-cloud-pubsub/pom.xml
@@ -112,6 +112,11 @@
       <groupId>io.opentelemetry</groupId>
       <artifactId>opentelemetry-semconv</artifactId>
     </dependency>
+    <dependency>
+      <groupId>io.opentelemetry.semconv</groupId>
+      <artifactId>opentelemetry-semconv-incubating</artifactId>
+      <version>1.27.0-alpha</version>
+    </dependency>
 
     <!-- Test dependencies -->
     <dependency>
diff --git a/google-cloud-pubsub/src/main/java/com/google/cloud/pubsub/v1/OpenTelemetryPubsubTracer.java b/google-cloud-pubsub/src/main/java/com/google/cloud/pubsub/v1/OpenTelemetryPubsubTracer.java
index b946f44bf..8b27f2a56 100644
--- a/google-cloud-pubsub/src/main/java/com/google/cloud/pubsub/v1/OpenTelemetryPubsubTracer.java
+++ b/google-cloud-pubsub/src/main/java/com/google/cloud/pubsub/v1/OpenTelemetryPubsubTracer.java
@@ -27,6 +27,7 @@
 import io.opentelemetry.api.trace.StatusCode;
 import io.opentelemetry.api.trace.Tracer;
 import io.opentelemetry.context.Context;
+import io.opentelemetry.semconv.incubating.MessagingIncubatingAttributes;
 import io.opentelemetry.semconv.trace.attributes.SemanticAttributes;
 import java.util.List;
 
@@ -40,14 +41,8 @@ public class OpenTelemetryPubsubTracer {
       "subscriber concurrency control";
   private static final String SUBSCRIBE_SCHEDULER_SPAN_NAME = "subscriber scheduler";
 
-  private static final String MESSAGE_SIZE_ATTR_KEY = "messaging.message.body.size";
-  private static final String ORDERING_KEY_ATTR_KEY = "messaging.gcp_pubsub.message.ordering_key";
-  private static final String MESSAGE_ACK_ID_ATTR_KEY = "messaging.gcp_pubsub.message.ack_id";
   private static final String MESSAGE_EXACTLY_ONCE_ATTR_KEY =
       "messaging.gcp_pubsub.message.exactly_once_delivery";
-  private static final String MESSAGE_DELIVERY_ATTEMPT_ATTR_KEY =
-      "messaging.gcp_pubsub.message.delivery_attempt";
-  private static final String ACK_DEADLINE_ATTR_KEY = "messaging.gcp_pubsub.message.ack_deadline";
   private static final String RECEIPT_MODACK_ATTR_KEY = "messaging.gcp_pubsub.is_receipt_modack";
   private static final String PROJECT_ATTR_KEY = "gcp.project_id";
   private static final String PUBLISH_RPC_SPAN_SUFFIX = " publish";
@@ -93,9 +88,9 @@ void startPublisherSpan(PubsubMessageWrapper message) {
         createCommonSpanAttributesBuilder(
             message.getTopicName(), message.getTopicProject(), "publish", "create");
 
-    attributesBuilder.put(MESSAGE_SIZE_ATTR_KEY, message.getDataSize());
+    attributesBuilder.put(MessagingIncubatingAttributes.MESSAGING_MESSAGE_BODY_SIZE, message.getDataSize());
     if (!message.getOrderingKey().isEmpty()) {
-      attributesBuilder.put(ORDERING_KEY_ATTR_KEY, message.getOrderingKey());
+      attributesBuilder.put(MessagingIncubatingAttributes.MESSAGING_GCP_PUBSUB_MESSAGE_ORDERING_KEY, message.getOrderingKey());
     }
 
     Span publisherSpan =
@@ -239,14 +234,14 @@ void startSubscriberSpan(PubsubMessageWrapper message, boolean exactlyOnceDelive
 
     attributesBuilder
         .put(SemanticAttributes.MESSAGING_MESSAGE_ID, message.getMessageId())
-        .put(MESSAGE_SIZE_ATTR_KEY, message.getDataSize())
-        .put(MESSAGE_ACK_ID_ATTR_KEY, message.getAckId())
+        .put(MessagingIncubatingAttributes.MESSAGING_MESSAGE_BODY_SIZE, message.getDataSize())
+        .put(MessagingIncubatingAttributes.MESSAGING_GCP_PUBSUB_MESSAGE_ACK_ID, message.getAckId())
         .put(MESSAGE_EXACTLY_ONCE_ATTR_KEY, exactlyOnceDeliveryEnabled);
     if (!message.getOrderingKey().isEmpty()) {
-      attributesBuilder.put(ORDERING_KEY_ATTR_KEY, message.getOrderingKey());
+      attributesBuilder.put(MessagingIncubatingAttributes.MESSAGING_GCP_PUBSUB_MESSAGE_ORDERING_KEY, message.getOrderingKey());
     }
     if (message.getDeliveryAttempt() > 0) {
-      attributesBuilder.put(MESSAGE_DELIVERY_ATTEMPT_ATTR_KEY, message.getDeliveryAttempt());
+      attributesBuilder.put(MessagingIncubatingAttributes.MESSAGING_GCP_PUBSUB_MESSAGE_DELIVERY_ATTEMPT, message.getDeliveryAttempt());
     }
     Attributes attributes = attributesBuilder.build();
     Context publisherSpanContext = message.extractSpanContext(attributes);
@@ -380,7 +375,7 @@ Span startSubscribeRpcSpan(
     // Ack deadline and receipt modack are specific to the modack operation
     if (rpcOperation == "modack") {
       attributesBuilder
-          .put(ACK_DEADLINE_ATTR_KEY, ackDeadline)
+          .put(MessagingIncubatingAttributes.MESSAGING_GCP_PUBSUB_MESSAGE_ACK_DEADLINE, ackDeadline)
           .put(RECEIPT_MODACK_ATTR_KEY, isReceiptModack);
     }
 
diff --git a/google-cloud-pubsub/src/main/java/com/google/cloud/pubsub/v1/Publisher.java b/google-cloud-pubsub/src/main/java/com/google/cloud/pubsub/v1/Publisher.java
index 1d0276287..ff8288785 100644
--- a/google-cloud-pubsub/src/main/java/com/google/cloud/pubsub/v1/Publisher.java
+++ b/google-cloud-pubsub/src/main/java/com/google/cloud/pubsub/v1/Publisher.java
@@ -927,6 +927,15 @@ public Builder setCompressionBytesThreshold(long compressionBytesThreshold) {
       return this;
     }
 
+
+    /**
+     * OpenTelemetry will be enabled if setEnableOpenTelemetry is true and and instance of OpenTelemetry has been provied.
+    Warning: traces are subject to change. The name and attributes of a span might
+    change without notice. Only use run traces interactively. Don't use in
+    automation. Running non-interactive traces can cause problems if the underlying
+    trace architecture changes without notice.
+    */
+
     /** Gives the ability to enable Open Telemetry Tracing */
     public Builder setEnableOpenTelemetryTracing(boolean enableOpenTelemetryTracing) {
       this.enableOpenTelemetryTracing = enableOpenTelemetryTracing;
diff --git a/google-cloud-pubsub/src/main/java/com/google/cloud/pubsub/v1/Subscriber.java b/google-cloud-pubsub/src/main/java/com/google/cloud/pubsub/v1/Subscriber.java
index c45c9cb89..c69f0273c 100644
--- a/google-cloud-pubsub/src/main/java/com/google/cloud/pubsub/v1/Subscriber.java
+++ b/google-cloud-pubsub/src/main/java/com/google/cloud/pubsub/v1/Subscriber.java
@@ -707,13 +707,21 @@ Builder setClock(ApiClock clock) {
       return this;
     }
 
+    /**
+     * OpenTelemetry will be enabled if setEnableOpenTelemetry is true and and instance of OpenTelemetry has been provied.
+    Warning: traces are subject to change. The name and attributes of a span might
+    change without notice. Only use run traces interactively. Don't use in
+    automation. Running non-interactive traces can cause problems if the underlying
+    trace architecture changes without notice.
+    */
+
     /** Gives the ability to enable Open Telemetry Tracing */
     public Builder setEnableOpenTelemetryTracing(boolean enableOpenTelemetryTracing) {
       this.enableOpenTelemetryTracing = enableOpenTelemetryTracing;
       return this;
     }
 
-    /** Sets the instance of OpenTelemetry for the Publisher class. */
+    /** Sets the instance of OpenTelemetry for the Subscriber class. */
     public Builder setOpenTelemetry(OpenTelemetry openTelemetry) {
       this.openTelemetry = openTelemetry;
       return this;
diff --git a/google-cloud-pubsub/src/test/java/com/google/cloud/pubsub/v1/OpenTelemetryTest.java b/google-cloud-pubsub/src/test/java/com/google/cloud/pubsub/v1/OpenTelemetryTest.java
index b4433f41e..c242d9a63 100644
--- a/google-cloud-pubsub/src/test/java/com/google/cloud/pubsub/v1/OpenTelemetryTest.java
+++ b/google-cloud-pubsub/src/test/java/com/google/cloud/pubsub/v1/OpenTelemetryTest.java
@@ -35,6 +35,7 @@
 import io.opentelemetry.sdk.trace.data.LinkData;
 import io.opentelemetry.sdk.trace.data.SpanData;
 import io.opentelemetry.sdk.trace.data.StatusData;
+import io.opentelemetry.semconv.incubating.MessagingIncubatingAttributes;
 import io.opentelemetry.semconv.trace.attributes.SemanticAttributes;
 import java.util.Arrays;
 import java.util.List;
@@ -84,16 +85,10 @@ public class OpenTelemetryTest {
 
   private static final String MESSAGING_SYSTEM_VALUE = "gcp_pubsub";
   private static final String PROJECT_ATTR_KEY = "gcp.project_id";
-  private static final String MESSAGE_SIZE_ATTR_KEY = "messaging.message.body.size";
-  private static final String ORDERING_KEY_ATTR_KEY = "messaging.gcp_pubsub.message.ordering_key";
-  private static final String ACK_DEADLINE_ATTR_KEY = "messaging.gcp_pubsub.message.ack_deadline";
   private static final String RECEIPT_MODACK_ATTR_KEY = "messaging.gcp_pubsub.is_receipt_modack";
-  private static final String MESSAGE_ACK_ID_ATTR_KEY = "messaging.gcp_pubsub.message.ack_id";
   private static final String MESSAGE_EXACTLY_ONCE_ATTR_KEY =
       "messaging.gcp_pubsub.message.exactly_once_delivery";
   private static final String MESSAGE_RESULT_ATTR_KEY = "messaging.gcp_pubsub.result";
-  private static final String MESSAGE_DELIVERY_ATTEMPT_ATTR_KEY =
-      "messaging.gcp_pubsub.message.delivery_attempt";
 
   private static final String TRACEPARENT_ATTRIBUTE = "googclient_traceparent";
 
@@ -195,8 +190,8 @@ public void testPublishSpansSuccess() {
         .containsEntry(PROJECT_ATTR_KEY, PROJECT_NAME)
         .containsEntry(SemanticAttributes.CODE_FUNCTION, "publish")
         .containsEntry(SemanticAttributes.MESSAGING_OPERATION, "create")
-        .containsEntry(ORDERING_KEY_ATTR_KEY, ORDERING_KEY)
-        .containsEntry(MESSAGE_SIZE_ATTR_KEY, messageSize)
+        .containsEntry(MessagingIncubatingAttributes.MESSAGING_GCP_PUBSUB_MESSAGE_ORDERING_KEY, ORDERING_KEY)
+        .containsEntry(MessagingIncubatingAttributes.MESSAGING_MESSAGE_BODY_SIZE, messageSize)
         .containsEntry(SemanticAttributes.MESSAGING_MESSAGE_ID, MESSAGE_ID);
 
     // Check that the message has the attribute containing the trace context.
@@ -406,7 +401,7 @@ public void testSubscribeSpansSuccess() {
         .containsEntry(SemanticAttributes.MESSAGING_OPERATION, "modack")
         .containsEntry(
             SemanticAttributes.MESSAGING_BATCH_MESSAGE_COUNT, subscribeMessageWrappers.size())
-        .containsEntry(ACK_DEADLINE_ATTR_KEY, 10)
+        .containsEntry(MessagingIncubatingAttributes.MESSAGING_GCP_PUBSUB_MESSAGE_ACK_DEADLINE, 10)
         .containsEntry(RECEIPT_MODACK_ATTR_KEY, true);
 
     // Check span data, links, and attributes for the ack RPC span
@@ -503,10 +498,10 @@ public void testSubscribeSpansSuccess() {
             SemanticAttributes.MESSAGING_DESTINATION_NAME, FULL_SUBSCRIPTION_NAME.getSubscription())
         .containsEntry(PROJECT_ATTR_KEY, PROJECT_NAME)
         .containsEntry(SemanticAttributes.CODE_FUNCTION, "onResponse")
-        .containsEntry(MESSAGE_SIZE_ATTR_KEY, messageSize)
-        .containsEntry(ORDERING_KEY_ATTR_KEY, ORDERING_KEY)
-        .containsEntry(MESSAGE_ACK_ID_ATTR_KEY, ACK_ID)
-        .containsEntry(MESSAGE_DELIVERY_ATTEMPT_ATTR_KEY, DELIVERY_ATTEMPT)
+        .containsEntry(MessagingIncubatingAttributes.MESSAGING_MESSAGE_BODY_SIZE, messageSize)
+        .containsEntry(MessagingIncubatingAttributes.MESSAGING_GCP_PUBSUB_MESSAGE_ORDERING_KEY, ORDERING_KEY)
+        .containsEntry(MessagingIncubatingAttributes.MESSAGING_GCP_PUBSUB_MESSAGE_ACK_ID, ACK_ID)
+        .containsEntry(MessagingIncubatingAttributes.MESSAGING_GCP_PUBSUB_MESSAGE_DELIVERY_ATTEMPT, DELIVERY_ATTEMPT)
         .containsEntry(MESSAGE_EXACTLY_ONCE_ATTR_KEY, EXACTLY_ONCE_ENABLED)
         .containsEntry(MESSAGE_RESULT_ATTR_KEY, PROCESS_ACTION)
         .containsEntry(SemanticAttributes.MESSAGING_MESSAGE_ID, MESSAGE_ID);