Index: Ringtoets/ClosingStructures/src/Ringtoets.ClosingStructures.Forms/Views/ClosingStructuresFailureMechanismSectionResultRow.cs
===================================================================
diff -u -rb011f99ae1c6d50589e37944856bb806a9b2479d -r4ee4f15df6960e0d5101a3ba33cc4ff4ce6b7e6d
--- Ringtoets/ClosingStructures/src/Ringtoets.ClosingStructures.Forms/Views/ClosingStructuresFailureMechanismSectionResultRow.cs	(.../ClosingStructuresFailureMechanismSectionResultRow.cs)	(revision b011f99ae1c6d50589e37944856bb806a9b2479d)
+++ Ringtoets/ClosingStructures/src/Ringtoets.ClosingStructures.Forms/Views/ClosingStructuresFailureMechanismSectionResultRow.cs	(.../ClosingStructuresFailureMechanismSectionResultRow.cs)	(revision 4ee4f15df6960e0d5101a3ba33cc4ff4ce6b7e6d)
@@ -456,6 +456,18 @@
                 FailureMechanismSectionResultRowHelper.DisableColumn(ColumnStateDefinitions[combinedAssemblyCategoryGroupIndex]);
                 FailureMechanismSectionResultRowHelper.DisableColumn(ColumnStateDefinitions[combinedAssemblyProbabilityIndex]);
             }
+            else
+            {
+                FailureMechanismSectionResultRowHelper.SetAssemblyCategoryGroupStyle(ColumnStateDefinitions[simpleAssemblyCategoryGroupIndex],
+                                                                                     simpleAssemblyCategoryGroup);
+                FailureMechanismSectionResultRowHelper.SetAssemblyCategoryGroupStyle(ColumnStateDefinitions[detailedAssemblyCategoryGroupIndex],
+                                                                                     detailedAssemblyCategoryGroup);
+                FailureMechanismSectionResultRowHelper.SetAssemblyCategoryGroupStyle(ColumnStateDefinitions[tailorMadeAssemblyCategoryGroupIndex],
+                                                                                     tailorMadeAssemblyCategoryGroup);
+                FailureMechanismSectionResultRowHelper.SetAssemblyCategoryGroupStyle(ColumnStateDefinitions[combinedAssemblyCategoryGroupIndex],
+                                                                                     combinedAssemblyCategoryGroup);
+                FailureMechanismSectionResultRowHelper.EnableColumn(ColumnStateDefinitions[combinedAssemblyProbabilityIndex], true);
+            }
 
             FailureMechanismSectionResultRowHelper.SetColumnState(ColumnStateDefinitions[manualAssemblyProbabilityIndex], !UseManualAssemblyProbability);
         }
Index: Ringtoets/ClosingStructures/test/Ringtoets.ClosingStructures.Forms.Test/Views/ClosingStructuresFailureMechanismSectionResultRowTest.cs
===================================================================
diff -u -rb011f99ae1c6d50589e37944856bb806a9b2479d -r4ee4f15df6960e0d5101a3ba33cc4ff4ce6b7e6d
--- Ringtoets/ClosingStructures/test/Ringtoets.ClosingStructures.Forms.Test/Views/ClosingStructuresFailureMechanismSectionResultRowTest.cs	(.../ClosingStructuresFailureMechanismSectionResultRowTest.cs)	(revision b011f99ae1c6d50589e37944856bb806a9b2479d)
+++ Ringtoets/ClosingStructures/test/Ringtoets.ClosingStructures.Forms.Test/Views/ClosingStructuresFailureMechanismSectionResultRowTest.cs	(.../ClosingStructuresFailureMechanismSectionResultRowTest.cs)	(revision 4ee4f15df6960e0d5101a3ba33cc4ff4ce6b7e6d)
@@ -21,6 +21,7 @@
 
 using System;
 using System.Collections.Generic;
+using System.Drawing;
 using Core.Common.Base;
 using Core.Common.Controls.DataGrid;
 using Core.Common.TestUtil;
@@ -705,6 +706,56 @@
             }
         }
 
+        [Test]
+        [TestCaseSource(typeof(FailureMechanismSectionResultRowTestHelper), nameof(FailureMechanismSectionResultRowTestHelper.CategoryGroupColorCases))]
+        public void Constructor_WithAssemblyCategoryGroupsSet_ExpectedColumnStates(FailureMechanismSectionAssemblyCategoryGroup assemblyCategoryGroup,
+                                                                                   Color expectedBackgroundColor)
+        {
+            // Setup
+            var failureMechanism = new ClosingStructuresFailureMechanism();
+
+            var mocks = new MockRepository();
+            IAssessmentSection assessmentSection = AssessmentSectionHelper.CreateAssessmentSectionStub(failureMechanism, mocks);
+            mocks.ReplayAll();
+
+            FailureMechanismSection section = FailureMechanismSectionTestFactory.CreateFailureMechanismSection();
+            var result = new ClosingStructuresFailureMechanismSectionResult(section)
+            {
+                TailorMadeAssessmentResult = TailorMadeAssessmentProbabilityCalculationResultType.Probability
+            };
+
+            using (new AssemblyToolCalculatorFactoryConfig())
+            {
+                var calculatorfactory = (TestAssemblyToolCalculatorFactory) AssemblyToolCalculatorFactory.Instance;
+                FailureMechanismSectionAssemblyCalculatorStub calculator = calculatorfactory.LastCreatedFailureMechanismSectionAssemblyCalculator;
+                var assemblyOutput = new FailureMechanismSectionAssembly(0, assemblyCategoryGroup);
+                calculator.SimpleAssessmentAssemblyOutput = assemblyOutput;
+                calculator.DetailedAssessmentAssemblyOutput = assemblyOutput;
+                calculator.TailorMadeAssessmentAssemblyOutput = assemblyOutput;
+                calculator.CombinedAssemblyCategoryOutput = assemblyCategoryGroup;
+
+                // Call
+                var row = new ClosingStructuresFailureMechanismSectionResultRow(result, 
+                                                                                failureMechanism, 
+                                                                                assessmentSection,
+                                                                                ConstructionProperties);
+
+                // Assert
+                IDictionary<int, DataGridViewColumnStateDefinition> columnStateDefinitions = row.ColumnStateDefinitions;
+
+                FailureMechanismSectionResultRowTestHelper.AssertColumnWithColorState(
+                    columnStateDefinitions[ConstructionProperties.SimpleAssemblyCategoryGroupIndex], expectedBackgroundColor);
+                FailureMechanismSectionResultRowTestHelper.AssertColumnWithColorState(
+                    columnStateDefinitions[ConstructionProperties.DetailedAssemblyCategoryGroupIndex], expectedBackgroundColor);
+                FailureMechanismSectionResultRowTestHelper.AssertColumnWithColorState(
+                    columnStateDefinitions[ConstructionProperties.TailorMadeAssemblyCategoryGroupIndex], expectedBackgroundColor);
+                FailureMechanismSectionResultRowTestHelper.AssertColumnWithColorState(
+                    columnStateDefinitions[ConstructionProperties.CombinedAssemblyCategoryGroupIndex], expectedBackgroundColor);
+
+                mocks.VerifyAll();
+            }
+        }
+
         #endregion
 
         #region Registration