diff --git a/ASN/TS32298_IMSChargingDataTypes.asn b/ASN/TS32298_IMSChargingDataTypes.asn
index 8ad4698906bf8eb195f46ac6ca54226271559129..83c17aca46162bb6ac5b52b61446062e8f0d8057 100644
--- a/ASN/TS32298_IMSChargingDataTypes.asn
+++ b/ASN/TS32298_IMSChargingDataTypes.asn
@@ -114,6 +114,7 @@ SCSCFRecord		::= SET
 	listOfCalledIdentityChanges				[63] SEQUENCE OF CalledIdentityChange OPTIONAL,
 	cellularNetworkInformation				[64] OCTET STRING OPTIONAL,
 	fEIdentifierList                        [65] FEIdentifierList OPTIONAL
+	lastACRInterimTimeStamp				    [66] TimeStamp OPTIONAL
 
 }
 
@@ -186,6 +187,7 @@ PCSCFRecord		::= SET
 	relatedICIDGenerationNode				[108] NodeAddress OPTIONAL,
 	fEIdentifierList                        [109] FEIdentifierList OPTIONAL,
 	satelliteIDList							[110] SEQUENCE Of SatelliteID OPTIONAL
+	lastACRInterimTimeStamp				    [111] TimeStamp OPTIONAL
 
 
 }
@@ -279,6 +281,7 @@ MRFCRecord		::= SET
 	requested-Party-Address					[71] InvolvedParty OPTIONAL,
 	list-Of-Called-Asserted-Identity		[72] ListOfInvolvedParties OPTIONAL,
 	fEIdentifierList                        [73] FEIdentifierList OPTIONAL
+	lastACRInterimTimeStamp				    [74] TimeStamp OPTIONAL
 
 }
 
@@ -328,6 +331,7 @@ MGCFRecord		::= SET
 	bearerService							[81] TransmissionMedium OPTIONAL,
 	iSUPCause								[82] ISUPCause OPTIONAL,
 	fEIdentifierList                        [83] FEIdentifierList OPTIONAL
+	lastACRInterimTimeStamp				    [84] TimeStamp OPTIONAL
 
 }
 
@@ -437,6 +441,7 @@ ASRecord		::= SET
 	msc-Address								[111] MSCAddress OPTIONAL,
 	threeGPPPSDataOffStatus					[112] ThreeGPPPSDataOffStatus OPTIONAL,
 	fEIdentifierList                        [113] FEIdentifierList OPTIONAL
+	lastACRInterimTimeStamp				    [114] TimeStamp OPTIONAL
 }
 
 ECSCFRecord		::= SET
@@ -489,6 +494,7 @@ ECSCFRecord		::= SET
 	listOfCalledIdentityChanges				[63] SEQUENCE OF CalledIdentityChange OPTIONAL,
 	cellularNetworkInformation				[64] OCTET STRING OPTIONAL,
 	fEIdentifierList                        [65] FEIdentifierList OPTIONAL
+	lastACRInterimTimeStamp				    [66] TimeStamp OPTIONAL
 
 }
 
@@ -550,6 +556,7 @@ IBCFRecord		::= SET
 	list-Of-AccessTransferInformation		[106] SEQUENCE OF AccessTransferInformation OPTIONAL,
 												-- ATCF only
 	fEIdentifierList                        [107] FEIdentifierList OPTIONAL
+	lastACRInterimTimeStamp				    [108] TimeStamp OPTIONAL
 
 }
 
@@ -601,6 +608,7 @@ TRFRecord		::= SET
 	routeHeaderReceived						[59] OCTET STRING OPTIONAL,
 	listOfCalledIdentityChanges				[63] SEQUENCE OF CalledIdentityChange OPTIONAL,
 	fEIdentifierList                        [64] FEIdentifierList OPTIONAL
+	lastACRInterimTimeStamp				    [65] TimeStamp OPTIONAL
 
 }
 
@@ -658,6 +666,7 @@ ATCFRecord 	::= SET
 	initialIMS-Charging-Identifier			[105] IMS-Charging-Identifier OPTIONAL,
 	list-Of-AccessTransferInformation		[106] SEQUENCE OF AccessTransferInformation OPTIONAL,
 	fEIdentifierList                        [107] FEIdentifierList OPTIONAL
+	lastACRInterimTimeStamp				    [108] TimeStamp OPTIONAL
 
 }
 
@@ -708,6 +717,7 @@ TFRecord		::= SET
 	routeHeaderTransmitted					[60] OCTET STRING OPTIONAL,
 	listOfCalledIdentityChanges				[63] SEQUENCE OF CalledIdentityChange OPTIONAL,
 	fEIdentifierList                        [64] FEIdentifierList OPTIONAL
+	lastACRInterimTimeStamp				    [65] TimeStamp OPTIONAL
 
 }