diff --git a/src/CoordinateOperation/CoordinateOperationMethods.php b/src/CoordinateOperation/CoordinateOperationMethods.php
index 2a9086ceb..70136be9d 100644
--- a/src/CoordinateOperation/CoordinateOperationMethods.php
+++ b/src/CoordinateOperation/CoordinateOperationMethods.php
@@ -206,6 +206,11 @@ class CoordinateOperationMethods
      */
     public const EPSG_GEOG3D_TO_GEOG2D_PLUS_GRAVITYRELATEDHEIGHT_IGN2009 = 'urn:ogc:def:method:EPSG::1095';
 
+    /**
+     * Geog3D to Geog2D+GravityRelatedHeight (ITAL2005).
+     */
+    public const EPSG_GEOG3D_TO_GEOG2D_PLUS_GRAVITYRELATEDHEIGHT_ITAL2005 = 'urn:ogc:def:method:EPSG::1105';
+
     /**
      * Geog3D to Geog2D+GravityRelatedHeight (OSGM-GB).
      */
@@ -276,6 +281,11 @@ class CoordinateOperationMethods
      */
     public const EPSG_GEOGRAPHIC3D_TO_GRAVITYRELATEDHEIGHT_IGN2009 = 'urn:ogc:def:method:EPSG::1073';
 
+    /**
+     * Geographic3D to GravityRelatedHeight (ITAL2005).
+     */
+    public const EPSG_GEOGRAPHIC3D_TO_GRAVITYRELATEDHEIGHT_ITAL2005 = 'urn:ogc:def:method:EPSG::1106';
+
     /**
      * Geographic3D to GravityRelatedHeight (NZgeoid)
      * EPSG initially gave this method the name "Geographic3D to GravityRelatedHeight (NZgeoid2009)". As the same file
diff --git a/src/EPSG/Import/EPSGCodegenFromDataImport.php b/src/EPSG/Import/EPSGCodegenFromDataImport.php
index fda956223..b4f84cac3 100644
--- a/src/EPSG/Import/EPSGCodegenFromDataImport.php
+++ b/src/EPSG/Import/EPSGCodegenFromDataImport.php
@@ -82,10 +82,6 @@ class EPSGCodegenFromDataImport
         1099, // Geographic3D to GravityRelatedHeight (PL txt)
         1100, // Geog3D to Geog2D+GravityRelatedHeight (PL txt)
         1101, // Vertical Offset by Grid Interpolation (PL txt)
-        1105, // Geog3D to Geog2D+GravityRelatedHeight (ITAL2005)
-        1106, // Geographic3D to GravityRelatedHeight (ITAL2005)
-        9620, // Norway Offshore Interpolation
-        9634, // Maritime Provinces polynomial interpolation
 
         // only distributed as .dll, can't use
         1036, // Cartesian Grid Offsets from Form Function
@@ -107,6 +103,12 @@ class EPSGCodegenFromDataImport
         1094, // Geog3D to Geog2D+GravityRelatedHeight (IGN1997)
         9664, // Geographic3D to GravityRelatedHeight (IGN1997)
 
+        // Replaced with a position vector transformation
+        9620, // Norway Offshore Interpolation
+
+        // Not available for download
+        9634, // Maritime Provinces polynomial interpolation
+
         // EGM files are *very* large and not of general use
         1103, // Geog3D to Geog2D+GravityRelatedHeight (EGM)
         9661, // Geographic3D to GravityRelatedHeight (EGM)
@@ -266,6 +268,10 @@ class EPSGCodegenFromDataImport
         9735, // NTv2 35160622_47161840_E50_F89.gsb
         9736, // NTv2 35160622_47161840_E50_F00.gsb
         9737, // NTv2 35160622_47161840_F89_F00.gsb
+        9727, // GRD geo_igm_mar06.grd
+        9728, // GRD geo_igm_mar06.grd
+        9729, // GRD geo_igm_mar06.grd
+        9730, // GRD geo_igm_mar06.grd
     ];
 
     public function __construct()