diff --git a/yang-models/_3gpp-nr-nrm-gnbcucpfunction.yang b/yang-models/_3gpp-nr-nrm-gnbcucpfunction.yang
index b7c05dddd58335b1b023c44faee40419bd14c778..037c7c62599a346a9dfed5ca4139fdb2d81bedfc 100755
--- a/yang-models/_3gpp-nr-nrm-gnbcucpfunction.yang
+++ b/yang-models/_3gpp-nr-nrm-gnbcucpfunction.yang
@@ -20,6 +20,7 @@ module _3gpp-nr-nrm-gnbcucpfunction {
     TTA, TTC). All rights reserved.";
   reference "3GPP TS 28.541 5G Network Resource Model (NRM)";
 
+  revision 2025-03-25 { reference "CR-1509"; }
   revision 2025-01-25 { reference "CR-1442"; }
   revision 2024-11-07 { reference "CR-1443"; } 
   revision 2024-08-19 { reference "CR-1405"; } 
@@ -252,6 +253,13 @@ module _3gpp-nr-nrm-gnbcucpfunction {
         enabled or disabled.";
     }
 
+    leaf dLTMControl {
+      type boolean;
+      default false;
+      description "This attribute determines whether the distributed SON
+        function LTM Cell Switch is enabled or disabled.";
+    }
+
     list qceIdMappingInfoList {
       description "List of the mapping relationship between QoE collection entity
         identity, PLMN where QoE collection entity resides, and the IP address of
@@ -349,7 +357,7 @@ module _3gpp-nr-nrm-gnbcucpfunction {
 
     leaf gnbIdLength {
       type int32 {range "22..32";}
-		  mandatory true;
+      mandatory true;
       description "This indicates the number of bits for encoding the gNB ID. 
       See 'Global gNB ID' in subclause 9.3.1.6 of TS 38.413";
     }