diff --git a/xds/src/main/java/io/grpc/xds/orca/OrcaServiceImpl.java b/xds/src/main/java/io/grpc/xds/orca/OrcaServiceImpl.java
index 60cb3e1089..2fe53ab6d1 100644
--- a/xds/src/main/java/io/grpc/xds/orca/OrcaServiceImpl.java
+++ b/xds/src/main/java/io/grpc/xds/orca/OrcaServiceImpl.java
@@ -24,6 +24,7 @@ import com.github.xds.service.orca.v3.OrcaLoadReportRequest;
 import com.google.common.annotations.VisibleForTesting;
 import com.google.protobuf.util.Durations;
 import io.grpc.BindableService;
+import io.grpc.ExperimentalApi;
 import io.grpc.ServerServiceDefinition;
 import io.grpc.SynchronizationContext;
 import io.grpc.services.InternalMetricRecorder;
@@ -41,6 +42,7 @@ import java.util.logging.Logger;
  * Implements a {@link BindableService} that generates Out-Of-Band server metrics.
  * Register the returned service to the server, then a client can request for periodic load reports.
  */
+@ExperimentalApi("https://github.com/grpc/grpc-java/issues/9006")
 public final class OrcaServiceImpl implements BindableService {
   private static final Logger logger = Logger.getLogger(OrcaServiceImpl.class.getName());