diff --git a/library/NAS_Templates.ttcn b/library/NAS_Templates.ttcn
index 97469d9..2e8be0e 100644
--- a/library/NAS_Templates.ttcn
+++ b/library/NAS_Templates.ttcn
@@ -316,6 +316,15 @@
 	}
 }
 
+/* 9.9.3.14 EPS update type */
+const BIT3 c_EPS_UPD_TYPE_TA_UPD := '000'B;
+const BIT3 c_EPS_UPD_TYPE_COMB_TA_LA_UPD := '001'B;
+const BIT3 c_EPS_UPD_TYPE_COMB_TA_LA_UPD_IMSI_ATTACH := '010'B;
+const BIT3 c_EPS_UPD_TYPE_TA_UPD_PERIODIC := '011'B;
+template (value) EPS_UpdateTypeV ts_EPS_UpdateTypeV(BIT3 typeOfUpdate := c_EPS_UPD_TYPE_TA_UPD, BIT1 activeFlag := '0'B) := {
+	 typeOfUpdate := typeOfUpdate,
+	 activeFlag := activeFlag
+}
 
 /* 8.2.3 Attach Reject */
 template (value) PDU_NAS_EPS