Index: NVDataMgmtDGRecords.h
===================================================================
diff -u -r192c8f1aa79ad0ef4a50be44a6ba37a8939ac823 -r77b29084a85f241dd6c83ef838e076bac666b11c
--- NVDataMgmtDGRecords.h	(.../NVDataMgmtDGRecords.h)	(revision 192c8f1aa79ad0ef4a50be44a6ba37a8939ac823)
+++ NVDataMgmtDGRecords.h	(.../NVDataMgmtDGRecords.h)	(revision 77b29084a85f241dd6c83ef838e076bac666b11c)
@@ -32,7 +32,7 @@
 // ********** public definitions **********
 
 #define MAX_TOP_LEVEL_PN_CHARS                    10U                                                           ///< Max number of characters for top level part number.
-#define MAX_TOP_LEVEL_SN_CHARS                    15U                                                           ///< Max number of characters for top level serial number.
+#define MAX_TOP_LEVEL_SN_CHARS                    20U                                                           ///< Max number of characters for top level serial number.
 #define PRES_SENSORS_RESERVED_SPACE_COUNT         5                                                             ///< Pressure sensors reserved space count.
 #define FLOW_SENSROS_RESERVED_SPACE_COUNT         2                                                             ///< Flow sensors reserved space count.
 #define TEMP_SENSORS_RESERVED_SPACE_COUNT         2                                                             ///< Temperature sensors reserved space count.
@@ -95,6 +95,7 @@
     GET_SYS_RECORD,                                                                                            ///< Get system record.
     GET_SRV_RECORD,                                                                                            ///< Get service record.
     GET_SRR_RECORD,                                                                                            ///< Get scheduled runs record.
+    GET_USAGE_RECORD,                                                                                          ///< Get usage record.
     NUM_OF_NV_DG_DATA                                                                                          ///< Number of non-volatile data.
 } NV_DATA_T;
 
@@ -220,13 +221,15 @@
     NUM_OF_DG_SCHEDULED_RUNS                                                                                    ///< Number of DG scheduled runs.
 } SCHEDULED_DG_RUNS_T;
 
-/// Disinfect types
-typedef enum dg_disinfects
+/// DG usage info items
+typedef enum dg_usage_items
 {
-    USAGE_INFO_HEAT_DISINFECT = 0,                                                                              ///< Heat disinfect.
-    USAGE_INFO_CHEMICAL_DISINFECT,                                                                              ///< Chemical disinfect.
-    NUM_OF_DISINFECTS                                                                                           ///< Number of disinfects.
-} DG_DISINFECT_T;
+    USAGE_INFO_RO_GEN_WATER = 0,                                                                                ///< Usage info RO generated water.
+    USAGE_INFO_HEAT_DISINFECT,                                                                                  ///< Usage info heat disinfect.
+    USAGE_INFO_CHEMICAL_DISINFECT,                                                                              ///< Usage info chemical disinfect.
+    USAGE_INFO_DISIFNECT_STATUS,                                                                                ///< Usage info disinfect (heat or chemical) status.
+    NUM_OF_USAGE_INFO_ITEMS                                                                                     ///< Number of usage info items.
+} DG_USAGE_INFO_ITEMS_T;
 
 #pragma pack(push, 1)
 /// Polynomial calibration structure
@@ -461,6 +464,7 @@
     U08 serviceLoc;                                                                                             ///< DG service location.
     U32 lastServiceEpochDate;                                                                                   ///< DG last service date in epoch.
     U32 serviceIntervalSeconds;                                                                                 ///< DG service interval in seconds.
+    U32 lastResetTimeEpoch;                                                                                     ///< Last time the record was reset in epoch.
     U16 crc;                                                                                                    ///< CRC for the DG service record structure.
 } DG_SERVICE_RECORD_T;