Index: Ringtoets/Integration/src/Ringtoets.Integration.IO/Assembly/ExportableCombinedSectionAssemblyCollection.cs
===================================================================
diff -u -r6764bbce511e1295e4ec857488cba59f1b11d49b -r56c8a2399c8a7006b84a36019af1e37dd639bca4
--- Ringtoets/Integration/src/Ringtoets.Integration.IO/Assembly/ExportableCombinedSectionAssemblyCollection.cs	(.../ExportableCombinedSectionAssemblyCollection.cs)	(revision 6764bbce511e1295e4ec857488cba59f1b11d49b)
+++ Ringtoets/Integration/src/Ringtoets.Integration.IO/Assembly/ExportableCombinedSectionAssemblyCollection.cs	(.../ExportableCombinedSectionAssemblyCollection.cs)	(revision 56c8a2399c8a7006b84a36019af1e37dd639bca4)
@@ -49,16 +49,10 @@
                 throw new ArgumentNullException(nameof(combinedSectionAssemblyResults));
             }
 
-            Sections = sections;
             CombinedSectionAssemblyResults = combinedSectionAssemblyResults;
         }
 
         /// <summary>
-        /// Gets the sections belonging to this collection of <see cref="ExportableCombinedSectionAssembly"/>.
-        /// </summary>
-        public IEnumerable<ExportableCombinedFailureMechanismSection> Sections { get; }
-
-        /// <summary>
         /// Gets the collection of <see cref="ExportableCombinedSectionAssembly"/>.
         /// </summary>
         public IEnumerable<ExportableCombinedSectionAssembly> CombinedSectionAssemblyResults { get; }
Index: Ringtoets/Integration/test/Ringtoets.Integration.IO.Test/Assembly/ExportableCombinedSectionAssemblyCollectionTest.cs
===================================================================
diff -u -r6764bbce511e1295e4ec857488cba59f1b11d49b -r56c8a2399c8a7006b84a36019af1e37dd639bca4
--- Ringtoets/Integration/test/Ringtoets.Integration.IO.Test/Assembly/ExportableCombinedSectionAssemblyCollectionTest.cs	(.../ExportableCombinedSectionAssemblyCollectionTest.cs)	(revision 6764bbce511e1295e4ec857488cba59f1b11d49b)
+++ Ringtoets/Integration/test/Ringtoets.Integration.IO.Test/Assembly/ExportableCombinedSectionAssemblyCollectionTest.cs	(.../ExportableCombinedSectionAssemblyCollectionTest.cs)	(revision 56c8a2399c8a7006b84a36019af1e37dd639bca4)
@@ -65,7 +65,6 @@
             var assembly = new ExportableCombinedSectionAssemblyCollection(sections, combinedSectionAssemblyResults);
 
             // Assert
-            Assert.AreSame(sections, assembly.Sections);
             Assert.AreSame(combinedSectionAssemblyResults, assembly.CombinedSectionAssemblyResults);
         }
     }
Index: Ringtoets/Integration/test/Ringtoets.Integration.IO.Test/Creators/AggregatedSerializableCombinedFailureMechanismSectionAssembliesCreatorTest.cs
===================================================================
diff -u -r32569b8b17f24007bc536331d8988d9369a661d4 -r56c8a2399c8a7006b84a36019af1e37dd639bca4
--- Ringtoets/Integration/test/Ringtoets.Integration.IO.Test/Creators/AggregatedSerializableCombinedFailureMechanismSectionAssembliesCreatorTest.cs	(.../AggregatedSerializableCombinedFailureMechanismSectionAssembliesCreatorTest.cs)	(revision 32569b8b17f24007bc536331d8988d9369a661d4)
+++ Ringtoets/Integration/test/Ringtoets.Integration.IO.Test/Creators/AggregatedSerializableCombinedFailureMechanismSectionAssembliesCreatorTest.cs	(.../AggregatedSerializableCombinedFailureMechanismSectionAssembliesCreatorTest.cs)	(revision 56c8a2399c8a7006b84a36019af1e37dd639bca4)
@@ -107,9 +107,6 @@
             var idGenerator = new UniqueIdentifierGenerator();
             SerializableTotalAssemblyResult totalAssemblyResult = CreateSerializableTotalAssembly("totalAssemblyResultId");
 
-            // Precondition
-            Assert.AreEqual(exportableCombinedSectionAssemblyCollection.Sections.Count(), exportableCombinedSectionAssemblyCollection.CombinedSectionAssemblyResults.Count());
-
             // Call
             AggregatedSerializableCombinedFailureMechanismSectionAssemblies aggregate =
                 AggregatedSerializableCombinedFailureMechanismSectionAssembliesCreator.Create(idGenerator,
@@ -138,7 +135,8 @@
             IEnumerable<SerializableFailureMechanismSection> serializableFailureMechanismSections,
             IEnumerable<SerializableCombinedFailureMechanismSectionAssembly> serializableFailureMechanismSectionAssemblies)
         {
-            IEnumerable<ExportableCombinedFailureMechanismSection> expectedSections = expectedCombinedSectionAssemblyCollection.Sections;
+            IEnumerable<ExportableCombinedFailureMechanismSection> expectedSections = expectedCombinedSectionAssemblyCollection.CombinedSectionAssemblyResults
+                                                                                                                               .Select(csar => csar.Section);
             int expectedNrOfSections = expectedSections.Count();
             Assert.AreEqual(expectedNrOfSections, serializableFailureMechanismSections.Count());
 
Index: Ringtoets/Integration/test/Ringtoets.Integration.IO.Test/Factories/ExportableAssessmentSectionFactoryTest.cs
===================================================================
diff -u -r68318584c702cb11e38cd84a31d18c951595dda0 -r56c8a2399c8a7006b84a36019af1e37dd639bca4
--- Ringtoets/Integration/test/Ringtoets.Integration.IO.Test/Factories/ExportableAssessmentSectionFactoryTest.cs	(.../ExportableAssessmentSectionFactoryTest.cs)	(revision 68318584c702cb11e38cd84a31d18c951595dda0)
+++ Ringtoets/Integration/test/Ringtoets.Integration.IO.Test/Factories/ExportableAssessmentSectionFactoryTest.cs	(.../ExportableAssessmentSectionFactoryTest.cs)	(revision 56c8a2399c8a7006b84a36019af1e37dd639bca4)
@@ -145,21 +145,13 @@
                                                                     failureMechanismAssemblyCalculator,
                                                                     assessmentSection);
 
-                AssertCombinedFailureMechanismSectionAssemblyResults(AssessmentSectionAssemblyFactory.AssembleCombinedPerFailureMechanismSection(assessmentSection),
-                                                                     exportableAssessmentSection.CombinedSectionAssemblyResults);
+                int expectedNrOfSections = AssessmentSectionAssemblyFactory.AssembleCombinedPerFailureMechanismSection(assessmentSection).Count();
+                Assert.AreEqual(expectedNrOfSections, exportableAssessmentSection.CombinedSectionAssemblyResults.CombinedSectionAssemblyResults.Count());
             }
         }
 
         #region TestHelper CombinedFailureMechanismSection
 
-        private static void AssertCombinedFailureMechanismSectionAssemblyResults(IEnumerable<CombinedFailureMechanismSectionAssemblyResult> expectedSections,
-                                                                                 ExportableCombinedSectionAssemblyCollection collection)
-        {
-            int expectedNrOfSections = expectedSections.Count();
-            Assert.AreEqual(expectedNrOfSections, collection.Sections.Count());
-            Assert.AreEqual(expectedNrOfSections, collection.CombinedSectionAssemblyResults.Count());
-        }
-
         #endregion
 
         #region TestHelpers FailureMechanismsWithProbability
Index: Ringtoets/Integration/test/Ringtoets.Integration.IO.Test/Factories/ExportableCombinedSectionAssemblyCollectionFactoryTest.cs
===================================================================
diff -u -rb4a67b942bd7fd1c4bbbc1a257e1573b33af9b4e -r56c8a2399c8a7006b84a36019af1e37dd639bca4
--- Ringtoets/Integration/test/Ringtoets.Integration.IO.Test/Factories/ExportableCombinedSectionAssemblyCollectionFactoryTest.cs	(.../ExportableCombinedSectionAssemblyCollectionFactoryTest.cs)	(revision b4a67b942bd7fd1c4bbbc1a257e1573b33af9b4e)
+++ Ringtoets/Integration/test/Ringtoets.Integration.IO.Test/Factories/ExportableCombinedSectionAssemblyCollectionFactoryTest.cs	(.../ExportableCombinedSectionAssemblyCollectionFactoryTest.cs)	(revision 56c8a2399c8a7006b84a36019af1e37dd639bca4)
@@ -119,17 +119,15 @@
                                                                                  ReferenceLine referenceLine)
         {
             int expectedNrOfSections = expectedSections.Count();
-            Assert.AreEqual(expectedNrOfSections, collection.Sections.Count());
             Assert.AreEqual(expectedNrOfSections, collection.CombinedSectionAssemblyResults.Count());
 
             for (var i = 0; i < expectedNrOfSections; i++)
             {
                 CombinedFailureMechanismSectionAssemblyResult expectedSection = expectedSections.ElementAt(i);
-                ExportableCombinedFailureMechanismSection actualSection = collection.Sections.ElementAt(i);
                 ExportableCombinedSectionAssembly actualSectionResult = collection.CombinedSectionAssemblyResults.ElementAt(i);
 
-                AssertExportableCombinedFailureMechanismSection(expectedSection, actualSection, referenceLine);
-                AssertExportableCombinedFailureMechanismSectionResult(actualSectionResult, actualSection, expectedSection);
+                AssertExportableCombinedFailureMechanismSection(expectedSection, actualSectionResult.Section, referenceLine);
+                AssertExportableCombinedFailureMechanismSectionResult(actualSectionResult, actualSectionResult.Section, expectedSection);
             }
         }