diff --git a/specification/metrics/sdk.md b/specification/metrics/sdk.md
index 3a14968ae69..bc9188a43a2 100644
--- a/specification/metrics/sdk.md
+++ b/specification/metrics/sdk.md
@@ -826,6 +826,8 @@ functions.
 
 #### RegisterProducer(metricProducer)
 
+**Status**: [Experimental](../document-status.md)
+
 RegisterProducer causes the MetricReader to use the provided
 [MetricProducer](#metricproducer) as a source of aggregated metric data in
 subsequent invocations of Collect. RegisterProducer is expected to be called