diff --git a/CDT-commonTypes.xsd b/CDT-commonTypes.xsd
index 26a4f76873b5ea72ee84471d18e3bdebbb6d7683..dff6bfd3019055acc372e67180172723cf8300ce 100644
--- a/CDT-commonTypes.xsd
+++ b/CDT-commonTypes.xsd
@@ -1443,6 +1443,20 @@ oneM2M EXPRESSLY ADVISES ANY AND ALL USE OF OR RELIANCE UPON THIS INFORMATION PR
 		</xs:sequence>
 	</xs:complexType>
 
+	<xs:complexType name="setOfNotificationStatsInfo">
+		<xs:sequence>
+			<xs:element name="notificationStats" minOccurs="1" maxOccurs="unbounded">
+				<xs:complexType>
+					<xs:sequence> 
+						<xs:element name="target" type="xs:anyURI"/>
+						<xs:element name="requestsSent" type="xs:nonNegativeInteger"/>
+						<xs:element name="responsesReceived" type="xs:nonNegativeInteger"/>
+					</xs:sequence>
+				</xs:complexType>
+			</xs:element>
+		</xs:sequence>
+	</xs:complexType>
+
 	<!-- Resource type definitions. These types include the "common attributes" that are used by oneM2M Resources. Each oneM2M 
 		Resource has a resource type that is defined in a separate schema, but each resource type extends one of the types that is 
 		defined below -->
diff --git a/CDT-crossResourceSubscription.xsd b/CDT-crossResourceSubscription.xsd
index a304d14b48b22cf1ed970de208184a1c15f9eff9..4cbf925071562e9b8629854d26c1efd0cecc1dd2 100644
--- a/CDT-crossResourceSubscription.xsd
+++ b/CDT-crossResourceSubscription.xsd
@@ -54,6 +54,8 @@ oneM2M EXPRESSLY ADVISES ANY AND ALL USE OF OR RELIANCE UPON THIS INFORMATION PR
 						    </xs:simpleType>
 						</xs:element>
 						<xs:element name="subscriberURI" type="m2m:ID" minOccurs="0" />
+						<xs:element name="notificationStatsEnable" type="xs:boolean"/>
+						<xs:element name="notificationStatsInfo" type="m2m:setOfNotificationStatsInfo" minOccurs="0" />					
 
 						<!-- Child Resources -->
 						<xs:choice minOccurs="0" maxOccurs="1">
diff --git a/CDT-subscription.xsd b/CDT-subscription.xsd
index ba8651e0c2bdd10a0e63ae1b7c08a0a7d590bd79..747844028d4b7888aede6a38fae3b6dd035cc03e 100644
--- a/CDT-subscription.xsd
+++ b/CDT-subscription.xsd
@@ -56,6 +56,8 @@ oneM2M EXPRESSLY ADVISES ANY AND ALL USE OF OR RELIANCE UPON THIS INFORMATION PR
 						<xs:element name="notificationEventCat" type="m2m:eventCat" minOccurs="0" />
 						<xs:element name="subscriberURI" type="xs:anyURI" minOccurs="0" />
 						<xs:element name="associatedCrossResourceSub" type="m2m:listOfURIs" minOccurs="0" />					
+						<xs:element name="notificationStatsEnable" type="xs:boolean"/>
+						<xs:element name="notificationStatsInfo" type="m2m:setOfNotificationStatsInfo" minOccurs="0" />					
 
 						<!-- Child Resources -->
 						<xs:choice minOccurs="0" maxOccurs="1">