diff --git a/AlertLogPkg.vhd b/AlertLogPkg.vhd
index b67316c..c631291 100644
--- a/AlertLogPkg.vhd
+++ b/AlertLogPkg.vhd
@@ -69,7 +69,8 @@ use ieee.numeric_std.all ;
 
 package AlertLogPkg is
 
-  subtype  AlertLogIDType   is integer ;
+  type     AlertLogIDType       is range integer'low to integer'high ;
+  type     AlertLogIDVectorType is array (integer range <>) of AlertLogIDType ;  
   type     AlertType        is (FAILURE, ERROR, WARNING) ;  -- NEVER
   subtype  AlertIndexType   is AlertType range FAILURE to WARNING ;
   type     AlertCountType   is array (AlertIndexType) of integer ;
@@ -458,12 +459,12 @@ package body AlertLogPkg is
 
     ------------------------------------------------------------
     procedure SetAlertLogName(Name : string ) ;
-    procedure SetNumAlertLogIDs (NewNumAlertLogIDs : integer) ;
+    procedure SetNumAlertLogIDs (NewNumAlertLogIDs : AlertLogIDType) ;
     impure function FindAlertLogID(Name : string ) return AlertLogIDType ;
     impure function FindAlertLogID(Name : string ; ParentID : AlertLogIDType) return AlertLogIDType ;
     impure function GetAlertLogID(Name : string ; ParentID : AlertLogIDType ; CreateHierarchy : Boolean) return AlertLogIDType ;
     impure function GetAlertLogParentID(AlertLogID : AlertLogIDType) return AlertLogIDType ;
-    procedure Initialize(NewNumAlertLogIDs : integer := MIN_NUM_AL_IDS) ;
+    procedure Initialize(NewNumAlertLogIDs : AlertLogIDType := MIN_NUM_AL_IDS) ;
     procedure Deallocate ;
 
     ------------------------------------------------------------
@@ -1061,7 +1062,7 @@ package body AlertLogPkg is
     ------------------------------------------------------------
     -- PT Local  
     -- Construct initial data structure
-    procedure LocalInitialize(NewNumAlertLogIDs : integer := MIN_NUM_AL_IDS) is
+    procedure LocalInitialize(NewNumAlertLogIDs : AlertLogIDType := MIN_NUM_AL_IDS) is
     ------------------------------------------------------------
     begin
       if NumAllocatedAlertLogIDsVar /= 0 then
@@ -1091,7 +1092,7 @@ package body AlertLogPkg is
     
     ------------------------------------------------------------
     -- Construct initial data structure
-    procedure Initialize(NewNumAlertLogIDs : integer := MIN_NUM_AL_IDS) is
+    procedure Initialize(NewNumAlertLogIDs : AlertLogIDType := MIN_NUM_AL_IDS) is
     ------------------------------------------------------------
     begin
       LocalInitialize(NewNumAlertLogIDs) ;
@@ -1146,7 +1147,7 @@ package body AlertLogPkg is
 
     ------------------------------------------------------------
     -- PT Local.
-    procedure GrowAlertStructure (NewNumAlertLogIDs : integer) is
+    procedure GrowAlertStructure (NewNumAlertLogIDs : AlertLogIDType) is
     ------------------------------------------------------------
       variable oldAlertLogPtr : AlertLogArrayPtrType ;
     begin
@@ -1165,7 +1166,7 @@ package body AlertLogPkg is
     -- Sets a AlertLogPtr to a particular size
     -- Use for small bins to save space or large bins to
     -- suppress the resize and copy as a CovBin autosizes.
-    procedure SetNumAlertLogIDs (NewNumAlertLogIDs : integer) is
+    procedure SetNumAlertLogIDs (NewNumAlertLogIDs : AlertLogIDType) is
     ------------------------------------------------------------
       variable oldAlertLogPtr : AlertLogArrayPtrType ;
     begin
diff --git a/ScoreboardGenericPkg.vhd b/ScoreboardGenericPkg.vhd
index ed43425..ddc5665 100644
--- a/ScoreboardGenericPkg.vhd
+++ b/ScoreboardGenericPkg.vhd
@@ -448,12 +448,15 @@ package body ScoreboardGenericPkg is
 
     type IntegerArrayType is array (integer range <>) of Integer ;  
     type IntegerArrayPointerType is access IntegerArrayType ; 
+    type AlertLogIDArrayType is array (integer range <>) of AlertLogIDType ;  
+    type AlertLogIDArrayPointerType is access AlertLogIDArrayType ; 
+
     
     variable ErrCntVar       : IntegerArrayPointerType := new IntegerArrayType'(1 => 0) ;
     variable DropCountVar    : IntegerArrayPointerType := new IntegerArrayType'(1 => 0) ;
     variable ItemNumberVar   : IntegerArrayPointerType := new IntegerArrayType'(1 => 0) ;
     variable CheckCountVar   : IntegerArrayPointerType := new IntegerArrayType'(1 => 0) ;
-    variable AlertLogIDVar   : IntegerArrayPointerType := new IntegerArrayType'(1 => OSVVM_SCOREBOARD_ALERTLOG_ID) ;
+    variable AlertLogIDVar   : AlertLogIDArrayPointerType := new AlertLogIDArrayType'(1 => OSVVM_SCOREBOARD_ALERTLOG_ID) ;
 
     variable NameVar         : NamePType ;
     variable ReportModeVar   : ScoreboardReportType ; 
@@ -509,7 +512,8 @@ package body ScoreboardGenericPkg is
     procedure SetArrayIndex(L, R : integer) is
     ------------------------------------------------------------
       variable OldHeadPointer, OldTailPointer, OldPopListPointer : ListArrayPointerType ;
-      variable OldErrCnt, OldDropCount, OldItemNumber, OldCheckCount, OldAlertLogIDVar : IntegerArrayPointerType ;
+      variable OldErrCnt, OldDropCount, OldItemNumber, OldCheckCount : IntegerArrayPointerType ;
+      variable OldAlertLogIDVar : AlertLogIDArrayPointerType ;
       variable Min, Max, Len, OldLen, OldMax : integer ; 
     begin
       Min := minimum(L, R) ; 
@@ -571,7 +575,7 @@ package body ScoreboardGenericPkg is
         end if ; 
 
         OldAlertLogIDVar := AlertLogIDVar ; 
-        AlertLogIDVar := new IntegerArrayType'(Min to Max => OSVVM_SCOREBOARD_ALERTLOG_ID) ;
+        AlertLogIDVar := new AlertLogIDArrayType'(Min to Max => OSVVM_SCOREBOARD_ALERTLOG_ID) ;
         if OldAlertLogIDVar /= NULL then 
           AlertLogIDVar(Min to OldMax) := OldAlertLogIDVar.all ; 
           Deallocate(OldAlertLogIDVar) ;