Index: Core/Components/test/Core.Components.Chart.Test/Core.Components.Chart.Test.csproj
===================================================================
diff -u -r63fc151e9cf722527465c1eddfa6567a90feb5e6 -r4bcb41b0973045c4cde33e3dd5d36133d7bd775e
--- Core/Components/test/Core.Components.Chart.Test/Core.Components.Chart.Test.csproj	(.../Core.Components.Chart.Test.csproj)	(revision 63fc151e9cf722527465c1eddfa6567a90feb5e6)
+++ Core/Components/test/Core.Components.Chart.Test/Core.Components.Chart.Test.csproj	(.../Core.Components.Chart.Test.csproj)	(revision 4bcb41b0973045c4cde33e3dd5d36133d7bd775e)
@@ -43,6 +43,10 @@
       <Project>{3bbfd65b-b277-4e50-ae6d-bd24c3434609}</Project>
       <Name>Core.Common.Base</Name>
     </ProjectReference>
+    <ProjectReference Include="..\..\..\Common\src\Core.Common.Util\Core.Common.Util.csproj">
+      <Project>{F49BD8B2-332A-4C91-A196-8CCE0A2C7D98}</Project>
+      <Name>Core.Common.Util</Name>
+    </ProjectReference>
     <ProjectReference Include="..\..\..\Common\test\Core.Common.TestUtil\Core.Common.TestUtil.csproj">
       <Project>{D749EE4C-CE50-4C17-BF01-9A953028C126}</Project>
       <Name>Core.Common.TestUtil</Name>
Index: Ringtoets/AssemblyTool/src/Ringtoets.AssemblyTool.IO/Model/Enums/AssemblyXmlEnumIdentifiers.cs
===================================================================
diff -u -r1ea93714d7063df84c6ecf043209ef821ca54a70 -r4bcb41b0973045c4cde33e3dd5d36133d7bd775e
--- Ringtoets/AssemblyTool/src/Ringtoets.AssemblyTool.IO/Model/Enums/AssemblyXmlEnumIdentifiers.cs	(.../AssemblyXmlEnumIdentifiers.cs)	(revision 1ea93714d7063df84c6ecf043209ef821ca54a70)
+++ Ringtoets/AssemblyTool/src/Ringtoets.AssemblyTool.IO/Model/Enums/AssemblyXmlEnumIdentifiers.cs	(.../AssemblyXmlEnumIdentifiers.cs)	(revision 4bcb41b0973045c4cde33e3dd5d36133d7bd775e)
@@ -137,6 +137,11 @@
         /// </summary>
         public const string SerializableAssessmentSectionCategoryGroupD = "D";
 
+        /// <summary>
+        /// Identifier for <see cref="SerializableAssessmentSectionCategoryGroup.NotAssessed"/>.
+        /// </summary>
+        public const string SerializableAssessmentSectionCategoryGroupNotAssessed = "NGO";
+
         #endregion
 
         #region SerializableAssemblyMethod
Index: Ringtoets/AssemblyTool/src/Ringtoets.AssemblyTool.IO/Model/Enums/SerializableAssessmentSectionCategoryGroup.cs
===================================================================
diff -u -r1f88ea122db66685810334df995c5ce69f164752 -r4bcb41b0973045c4cde33e3dd5d36133d7bd775e
--- Ringtoets/AssemblyTool/src/Ringtoets.AssemblyTool.IO/Model/Enums/SerializableAssessmentSectionCategoryGroup.cs	(.../SerializableAssessmentSectionCategoryGroup.cs)	(revision 1f88ea122db66685810334df995c5ce69f164752)
+++ Ringtoets/AssemblyTool/src/Ringtoets.AssemblyTool.IO/Model/Enums/SerializableAssessmentSectionCategoryGroup.cs	(.../SerializableAssessmentSectionCategoryGroup.cs)	(revision 4bcb41b0973045c4cde33e3dd5d36133d7bd775e)
@@ -56,6 +56,12 @@
         /// Represents the assembly category IVt for an assessment section.
         /// </summary>
         [XmlEnum(AssemblyXmlEnumIdentifiers.SerializableAssessmentSectionCategoryGroupD)]
-        D = 5
+        D = 5,
+
+        /// <summary>
+        /// Represents the assembly category NGO (Not assessed) for an assessment section.
+        /// </summary>
+        [XmlEnum(AssemblyXmlEnumIdentifiers.SerializableAssessmentSectionCategoryGroupNotAssessed)]
+        NotAssessed = 6
     }
 }
\ No newline at end of file
Index: Ringtoets/AssemblyTool/test/Ringtoets.AssemblyTool.Data.Test/Ringtoets.AssemblyTool.Data.Test.csproj
===================================================================
diff -u -r4e3025c88acd58d4f9e63b3e0cf0c87a81db6166 -r4bcb41b0973045c4cde33e3dd5d36133d7bd775e
--- Ringtoets/AssemblyTool/test/Ringtoets.AssemblyTool.Data.Test/Ringtoets.AssemblyTool.Data.Test.csproj	(.../Ringtoets.AssemblyTool.Data.Test.csproj)	(revision 4e3025c88acd58d4f9e63b3e0cf0c87a81db6166)
+++ Ringtoets/AssemblyTool/test/Ringtoets.AssemblyTool.Data.Test/Ringtoets.AssemblyTool.Data.Test.csproj	(.../Ringtoets.AssemblyTool.Data.Test.csproj)	(revision 4bcb41b0973045c4cde33e3dd5d36133d7bd775e)
@@ -35,6 +35,10 @@
     <None Include="packages.config" />
   </ItemGroup>
   <ItemGroup>
+    <ProjectReference Include="..\..\..\..\Core\Common\src\Core.Common.Util\Core.Common.Util.csproj">
+      <Project>{F49BD8B2-332A-4C91-A196-8CCE0A2C7D98}</Project>
+      <Name>Core.Common.Util</Name>
+    </ProjectReference>
     <ProjectReference Include="..\..\..\..\Core\Common\test\Core.Common.TestUtil\Core.Common.TestUtil.csproj">
       <Project>{D749EE4C-CE50-4C17-BF01-9A953028C126}</Project>
       <Name>Core.Common.TestUtil</Name>
Index: Ringtoets/AssemblyTool/test/Ringtoets.AssemblyTool.Forms.Test/Ringtoets.AssemblyTool.Forms.Test.csproj
===================================================================
diff -u -re770aa409686b28f0e540a0303332ac0d908eaa0 -r4bcb41b0973045c4cde33e3dd5d36133d7bd775e
--- Ringtoets/AssemblyTool/test/Ringtoets.AssemblyTool.Forms.Test/Ringtoets.AssemblyTool.Forms.Test.csproj	(.../Ringtoets.AssemblyTool.Forms.Test.csproj)	(revision e770aa409686b28f0e540a0303332ac0d908eaa0)
+++ Ringtoets/AssemblyTool/test/Ringtoets.AssemblyTool.Forms.Test/Ringtoets.AssemblyTool.Forms.Test.csproj	(.../Ringtoets.AssemblyTool.Forms.Test.csproj)	(revision 4bcb41b0973045c4cde33e3dd5d36133d7bd775e)
@@ -27,6 +27,10 @@
     <None Include="packages.config" />
   </ItemGroup>
   <ItemGroup>
+    <ProjectReference Include="..\..\..\..\Core\Common\src\Core.Common.Util\Core.Common.Util.csproj">
+      <Project>{F49BD8B2-332A-4C91-A196-8CCE0A2C7D98}</Project>
+      <Name>Core.Common.Util</Name>
+    </ProjectReference>
     <ProjectReference Include="..\..\..\..\Core\Common\test\Core.Common.TestUtil\Core.Common.TestUtil.csproj">
       <Project>{D749EE4C-CE50-4C17-BF01-9A953028C126}</Project>
       <Name>Core.Common.TestUtil</Name>
Index: Ringtoets/AssemblyTool/test/Ringtoets.AssemblyTool.IO.Test/Model/Enums/AssemblyXmlEnumIdentifiersTest.cs
===================================================================
diff -u -r1ea93714d7063df84c6ecf043209ef821ca54a70 -r4bcb41b0973045c4cde33e3dd5d36133d7bd775e
--- Ringtoets/AssemblyTool/test/Ringtoets.AssemblyTool.IO.Test/Model/Enums/AssemblyXmlEnumIdentifiersTest.cs	(.../AssemblyXmlEnumIdentifiersTest.cs)	(revision 1ea93714d7063df84c6ecf043209ef821ca54a70)
+++ Ringtoets/AssemblyTool/test/Ringtoets.AssemblyTool.IO.Test/Model/Enums/AssemblyXmlEnumIdentifiersTest.cs	(.../AssemblyXmlEnumIdentifiersTest.cs)	(revision 4bcb41b0973045c4cde33e3dd5d36133d7bd775e)
@@ -53,6 +53,7 @@
             Assert.AreEqual("B", AssemblyXmlEnumIdentifiers.SerializableAssessmentSectionCategoryGroupB);
             Assert.AreEqual("C", AssemblyXmlEnumIdentifiers.SerializableAssessmentSectionCategoryGroupC);
             Assert.AreEqual("D", AssemblyXmlEnumIdentifiers.SerializableAssessmentSectionCategoryGroupD);
+            Assert.AreEqual("NGO", AssemblyXmlEnumIdentifiers.SerializableAssessmentSectionCategoryGroupNotAssessed);
 
             Assert.AreEqual("WBI-0E-1", AssemblyXmlEnumIdentifiers.SerializableAssemblyMethodWBI0E1);
             Assert.AreEqual("WBI-0E-3", AssemblyXmlEnumIdentifiers.SerializableAssemblyMethodWBI0E3);
Index: Ringtoets/AssemblyTool/test/Ringtoets.AssemblyTool.IO.Test/Model/Enums/SerializableAssessmentSectionCategoryGroupTest.cs
===================================================================
diff -u -rb53d4c3c4221c2fcbc7b3c679e62d59a165fe8d4 -r4bcb41b0973045c4cde33e3dd5d36133d7bd775e
--- Ringtoets/AssemblyTool/test/Ringtoets.AssemblyTool.IO.Test/Model/Enums/SerializableAssessmentSectionCategoryGroupTest.cs	(.../SerializableAssessmentSectionCategoryGroupTest.cs)	(revision b53d4c3c4221c2fcbc7b3c679e62d59a165fe8d4)
+++ Ringtoets/AssemblyTool/test/Ringtoets.AssemblyTool.IO.Test/Model/Enums/SerializableAssessmentSectionCategoryGroupTest.cs	(.../SerializableAssessmentSectionCategoryGroupTest.cs)	(revision 4bcb41b0973045c4cde33e3dd5d36133d7bd775e)
@@ -49,6 +49,9 @@
                     },
                     {
                         SerializableAssessmentSectionCategoryGroup.D, 5
+                    },
+                    {
+                        SerializableAssessmentSectionCategoryGroup.NotAssessed, 6
                     }
                 };
             }
@@ -74,6 +77,9 @@
                     },
                     {
                         SerializableAssessmentSectionCategoryGroup.D, "D"
+                    },
+                    {
+                        SerializableAssessmentSectionCategoryGroup.NotAssessed, "NGO"
                     }
                 };
             }
Index: Ringtoets/ClosingStructures/test/Ringtoets.ClosingStructures.Data.Test/Ringtoets.ClosingStructures.Data.Test.csproj
===================================================================
diff -u -rbbbfacd9e38cf43c98dba73e39694850fb932a66 -r4bcb41b0973045c4cde33e3dd5d36133d7bd775e
--- Ringtoets/ClosingStructures/test/Ringtoets.ClosingStructures.Data.Test/Ringtoets.ClosingStructures.Data.Test.csproj	(.../Ringtoets.ClosingStructures.Data.Test.csproj)	(revision bbbfacd9e38cf43c98dba73e39694850fb932a66)
+++ Ringtoets/ClosingStructures/test/Ringtoets.ClosingStructures.Data.Test/Ringtoets.ClosingStructures.Data.Test.csproj	(.../Ringtoets.ClosingStructures.Data.Test.csproj)	(revision 4bcb41b0973045c4cde33e3dd5d36133d7bd775e)
@@ -41,6 +41,10 @@
       <Project>{3BBFD65B-B277-4E50-AE6D-BD24C3434609}</Project>
       <Name>Core.Common.Base</Name>
     </ProjectReference>
+    <ProjectReference Include="..\..\..\..\Core\Common\src\Core.Common.Util\Core.Common.Util.csproj">
+      <Project>{F49BD8B2-332A-4C91-A196-8CCE0A2C7D98}</Project>
+      <Name>Core.Common.Util</Name>
+    </ProjectReference>
     <ProjectReference Include="..\..\..\..\Core\Common\test\Core.Common.Data.TestUtil\Core.Common.Data.TestUtil.csproj">
       <Project>{0b0d2dff-7e7e-4bb0-a007-61800c85809a}</Project>
       <Name>Core.Common.Data.TestUtil</Name>
Index: Ringtoets/Common/test/Ringtoets.Common.Data.Test/Ringtoets.Common.Data.Test.csproj
===================================================================
diff -u -rb4ef740dd8e6dea8a3a4b02c4584b57c52b63f22 -r4bcb41b0973045c4cde33e3dd5d36133d7bd775e
--- Ringtoets/Common/test/Ringtoets.Common.Data.Test/Ringtoets.Common.Data.Test.csproj	(.../Ringtoets.Common.Data.Test.csproj)	(revision b4ef740dd8e6dea8a3a4b02c4584b57c52b63f22)
+++ Ringtoets/Common/test/Ringtoets.Common.Data.Test/Ringtoets.Common.Data.Test.csproj	(.../Ringtoets.Common.Data.Test.csproj)	(revision 4bcb41b0973045c4cde33e3dd5d36133d7bd775e)
@@ -117,6 +117,10 @@
       <Project>{3bbfd65b-b277-4e50-ae6d-bd24c3434609}</Project>
       <Name>Core.Common.Base</Name>
     </ProjectReference>
+    <ProjectReference Include="..\..\..\..\Core\Common\src\Core.Common.Util\Core.Common.Util.csproj">
+      <Project>{F49BD8B2-332A-4C91-A196-8CCE0A2C7D98}</Project>
+      <Name>Core.Common.Util</Name>
+    </ProjectReference>
     <ProjectReference Include="..\..\..\..\Core\Common\test\Core.Common.Data.TestUtil\Core.Common.Data.TestUtil.csproj">
       <Project>{0B0D2DFF-7E7E-4BB0-A007-61800C85809A}</Project>
       <Name>Core.Common.Data.TestUtil</Name>
Index: Ringtoets/Common/test/Ringtoets.Common.Primitives.Test/Ringtoets.Common.Primitives.Test.csproj
===================================================================
diff -u -rb4ef740dd8e6dea8a3a4b02c4584b57c52b63f22 -r4bcb41b0973045c4cde33e3dd5d36133d7bd775e
--- Ringtoets/Common/test/Ringtoets.Common.Primitives.Test/Ringtoets.Common.Primitives.Test.csproj	(.../Ringtoets.Common.Primitives.Test.csproj)	(revision b4ef740dd8e6dea8a3a4b02c4584b57c52b63f22)
+++ Ringtoets/Common/test/Ringtoets.Common.Primitives.Test/Ringtoets.Common.Primitives.Test.csproj	(.../Ringtoets.Common.Primitives.Test.csproj)	(revision 4bcb41b0973045c4cde33e3dd5d36133d7bd775e)
@@ -32,6 +32,10 @@
     <None Include="packages.config" />
   </ItemGroup>
   <ItemGroup>
+    <ProjectReference Include="..\..\..\..\Core\Common\src\Core.Common.Util\Core.Common.Util.csproj">
+      <Project>{F49BD8B2-332A-4C91-A196-8CCE0A2C7D98}</Project>
+      <Name>Core.Common.Util</Name>
+    </ProjectReference>
     <ProjectReference Include="..\..\..\..\Core\Common\test\Core.Common.TestUtil\Core.Common.TestUtil.csproj">
       <Project>{D749EE4C-CE50-4C17-BF01-9A953028C126}</Project>
       <Name>Core.Common.TestUtil</Name>
Index: Ringtoets/GrassCoverErosionInwards/test/Ringtoets.GrassCoverErosionInwards.Data.Test/Ringtoets.GrassCoverErosionInwards.Data.Test.csproj
===================================================================
diff -u -rbbbfacd9e38cf43c98dba73e39694850fb932a66 -r4bcb41b0973045c4cde33e3dd5d36133d7bd775e
--- Ringtoets/GrassCoverErosionInwards/test/Ringtoets.GrassCoverErosionInwards.Data.Test/Ringtoets.GrassCoverErosionInwards.Data.Test.csproj	(.../Ringtoets.GrassCoverErosionInwards.Data.Test.csproj)	(revision bbbfacd9e38cf43c98dba73e39694850fb932a66)
+++ Ringtoets/GrassCoverErosionInwards/test/Ringtoets.GrassCoverErosionInwards.Data.Test/Ringtoets.GrassCoverErosionInwards.Data.Test.csproj	(.../Ringtoets.GrassCoverErosionInwards.Data.Test.csproj)	(revision 4bcb41b0973045c4cde33e3dd5d36133d7bd775e)
@@ -47,6 +47,10 @@
       <Project>{3BBFD65B-B277-4E50-AE6D-BD24C3434609}</Project>
       <Name>Core.Common.Base</Name>
     </ProjectReference>
+    <ProjectReference Include="..\..\..\..\Core\Common\src\Core.Common.Util\Core.Common.Util.csproj">
+      <Project>{F49BD8B2-332A-4C91-A196-8CCE0A2C7D98}</Project>
+      <Name>Core.Common.Util</Name>
+    </ProjectReference>
     <ProjectReference Include="..\..\..\..\Core\Common\test\Core.Common.Data.TestUtil\Core.Common.Data.TestUtil.csproj">
       <Project>{0B0D2DFF-7E7E-4BB0-A007-61800C85809A}</Project>
       <Name>Core.Common.Data.TestUtil</Name>
Index: Ringtoets/Revetment/test/Ringtoets.Revetment.Data.Test/Ringtoets.Revetment.Data.Test.csproj
===================================================================
diff -u -r3514dda97fee1a5e5178020b2a06780840075e82 -r4bcb41b0973045c4cde33e3dd5d36133d7bd775e
--- Ringtoets/Revetment/test/Ringtoets.Revetment.Data.Test/Ringtoets.Revetment.Data.Test.csproj	(.../Ringtoets.Revetment.Data.Test.csproj)	(revision 3514dda97fee1a5e5178020b2a06780840075e82)
+++ Ringtoets/Revetment/test/Ringtoets.Revetment.Data.Test/Ringtoets.Revetment.Data.Test.csproj	(.../Ringtoets.Revetment.Data.Test.csproj)	(revision 4bcb41b0973045c4cde33e3dd5d36133d7bd775e)
@@ -37,6 +37,10 @@
       <Project>{3bbfd65b-b277-4e50-ae6d-bd24c3434609}</Project>
       <Name>Core.Common.Base</Name>
     </ProjectReference>
+    <ProjectReference Include="..\..\..\..\Core\Common\src\Core.Common.Util\Core.Common.Util.csproj">
+      <Project>{F49BD8B2-332A-4C91-A196-8CCE0A2C7D98}</Project>
+      <Name>Core.Common.Util</Name>
+    </ProjectReference>
     <ProjectReference Include="..\..\..\..\Core\Common\test\Core.Common.Data.TestUtil\Core.Common.Data.TestUtil.csproj">
       <Project>{0B0D2DFF-7E7E-4BB0-A007-61800C85809A}</Project>
       <Name>Core.Common.Data.TestUtil</Name>