Index: Riskeer/Piping/src/Riskeer.Piping.Forms/PropertyClasses/RegistrationState/PipingFailureMechanismProperties.cs
===================================================================
diff -u -r48a836a7ffca1cd39e89e8d88d19f849c3b498f9 -r5f65cb6d602ef04bf165007f4ddf8eeeaa87451b
--- Riskeer/Piping/src/Riskeer.Piping.Forms/PropertyClasses/RegistrationState/PipingFailureMechanismProperties.cs	(.../PipingFailureMechanismProperties.cs)	(revision 48a836a7ffca1cd39e89e8d88d19f849c3b498f9)
+++ Riskeer/Piping/src/Riskeer.Piping.Forms/PropertyClasses/RegistrationState/PipingFailureMechanismProperties.cs	(.../PipingFailureMechanismProperties.cs)	(revision 5f65cb6d602ef04bf165007f4ddf8eeeaa87451b)
@@ -22,7 +22,6 @@
 using System;
 using Core.Common.Util.Attributes;
 using Core.Gui.Attributes;
-using Riskeer.Common.Data.AssessmentSection;
 using Riskeer.Piping.Data;
 using RiskeerCommonFormsResources = Riskeer.Common.Forms.Properties.Resources;
 
@@ -39,29 +38,18 @@
         private const int aPropertyIndex = 4;
         private const int bPropertyIndex = 5;
 
-        private readonly IAssessmentSection assessmentSection;
-
         /// <summary>
         /// Creates a new instance of <see cref="PipingFailureMechanismProperties"/>.
         /// </summary>
         /// <param name="data">The instance to show the properties of.</param>
-        /// <param name="assessmentSection">The assessment section the data belongs to.</param>
-        /// <exception cref="ArgumentNullException">Thrown when any parameter is <c>null</c>.</exception>
-        public PipingFailureMechanismProperties(PipingFailureMechanism data, IAssessmentSection assessmentSection)
+        /// <exception cref="ArgumentNullException">Thrown when any <paramref name="data"/> is <c>null</c>.</exception>
+        public PipingFailureMechanismProperties(PipingFailureMechanism data)
             : base(data, new ConstructionProperties
             {
                 NamePropertyIndex = namePropertyIndex,
                 CodePropertyIndex = codePropertyIndex
-            })
-        {
-            if (assessmentSection == null)
-            {
-                throw new ArgumentNullException(nameof(assessmentSection));
-            }
+            }) {}
 
-            this.assessmentSection = assessmentSection;
-        }
-
         #region General
 
         [PropertyOrder(inAssemblyPropertyIndex)]
Index: Riskeer/Piping/src/Riskeer.Piping.Plugin/PipingPlugin.cs
===================================================================
diff -u -r5447d74a2dd344fcde21e3e0b54069faa38153bd -r5f65cb6d602ef04bf165007f4ddf8eeeaa87451b
--- Riskeer/Piping/src/Riskeer.Piping.Plugin/PipingPlugin.cs	(.../PipingPlugin.cs)	(revision 5447d74a2dd344fcde21e3e0b54069faa38153bd)
+++ Riskeer/Piping/src/Riskeer.Piping.Plugin/PipingPlugin.cs	(.../PipingPlugin.cs)	(revision 5f65cb6d602ef04bf165007f4ddf8eeeaa87451b)
@@ -97,7 +97,7 @@
             };
             yield return new PropertyInfo<RegistrationStateFailureMechanismContext, RegistrationStateFailureMechanismProperties>
             {
-                CreateInstance = context => new RegistrationStateFailureMechanismProperties(context.WrappedData, context.Parent)
+                CreateInstance = context => new RegistrationStateFailureMechanismProperties(context.WrappedData)
             };
             yield return new PropertyInfo<SemiProbabilisticPipingInputContext, SemiProbabilisticPipingInputContextProperties>
             {
Index: Riskeer/Piping/test/Riskeer.Piping.Forms.Test/PropertyClasses/RegistrationState/PipingFailureMechanismPropertiesTest.cs
===================================================================
diff -u -r48a836a7ffca1cd39e89e8d88d19f849c3b498f9 -r5f65cb6d602ef04bf165007f4ddf8eeeaa87451b
--- Riskeer/Piping/test/Riskeer.Piping.Forms.Test/PropertyClasses/RegistrationState/PipingFailureMechanismPropertiesTest.cs	(.../PipingFailureMechanismPropertiesTest.cs)	(revision 48a836a7ffca1cd39e89e8d88d19f849c3b498f9)
+++ Riskeer/Piping/test/Riskeer.Piping.Forms.Test/PropertyClasses/RegistrationState/PipingFailureMechanismPropertiesTest.cs	(.../PipingFailureMechanismPropertiesTest.cs)	(revision 5f65cb6d602ef04bf165007f4ddf8eeeaa87451b)
@@ -26,7 +26,6 @@
 using Core.Gui.TestUtil;
 using NUnit.Framework;
 using Rhino.Mocks;
-using Riskeer.Common.Data.AssessmentSection;
 using Riskeer.Piping.Data;
 using Riskeer.Piping.Forms.PropertyClasses;
 using Riskeer.Piping.Forms.PropertyClasses.RegistrationState;
@@ -43,33 +42,17 @@
         private const int bPropertyIndex = 4;
 
         [Test]
-        public void Constructor_AssessmentSectionNull_ThrowsArgumentNullException()
-        {
-            // Call
-            void Call() => new PipingFailureMechanismProperties(new PipingFailureMechanism(), null);
-
-            // Assert
-            var exception = Assert.Throws<ArgumentNullException>(Call);
-            Assert.AreEqual("assessmentSection", exception.ParamName);
-        }
-
-        [Test]
         public void Constructor_ExpectedValues()
         {
             // Setup
-            var mocks = new MockRepository();
-            var assessmentSection = mocks.Stub<IAssessmentSection>();
-            assessmentSection.Stub(a => a.ReferenceLine).Return(new ReferenceLine());
-            mocks.ReplayAll();
-
             var random = new Random(21);
             var failureMechanism = new PipingFailureMechanism
             {
                 InAssembly = random.NextBoolean()
             };
 
             // Call
-            var properties = new PipingFailureMechanismProperties(failureMechanism, assessmentSection);
+            var properties = new PipingFailureMechanismProperties(failureMechanism);
 
             // Assert
             Assert.IsInstanceOf<PipingFailureMechanismPropertiesBase>(properties);
@@ -80,22 +63,16 @@
             PipingProbabilityAssessmentInput probabilityAssessmentInput = failureMechanism.PipingProbabilityAssessmentInput;
             Assert.AreEqual(probabilityAssessmentInput.A, properties.A);
             Assert.AreEqual(probabilityAssessmentInput.B, properties.B);
-
-            mocks.VerifyAll();
         }
 
         [Test]
         public void Constructor_InAssemblyTrue_PropertiesHaveExpectedAttributesValues()
         {
             // Setup
-            var mocks = new MockRepository();
-            var assessmentSection = mocks.Stub<IAssessmentSection>();
-            mocks.ReplayAll();
-
             var failureMechanism = new PipingFailureMechanism();
 
             // Call
-            var properties = new PipingFailureMechanismProperties(failureMechanism, assessmentSection);
+            var properties = new PipingFailureMechanismProperties(failureMechanism);
 
             // Assert
             PropertyDescriptorCollection dynamicProperties = PropertiesTestHelper.GetAllVisiblePropertyDescriptors(properties);
@@ -137,25 +114,19 @@
                                                                             "b [m]",
                                                                             "De parameter 'b' die gebruikt wordt voor het lengte-effect in berekening van de maximaal toelaatbare faalkans.",
                                                                             true);
-
-            mocks.VerifyAll();
         }
 
         [Test]
         public void Constructor_InAssemblyFalse_PropertiesHaveExpectedAttributesValues()
         {
             // Setup
-            var mocks = new MockRepository();
-            var assessmentSection = mocks.Stub<IAssessmentSection>();
-            mocks.ReplayAll();
-
             var failureMechanism = new PipingFailureMechanism
             {
                 InAssembly = false
             };
 
             // Call
-            var properties = new PipingFailureMechanismProperties(failureMechanism, assessmentSection);
+            var properties = new PipingFailureMechanismProperties(failureMechanism);
 
             // Assert
             PropertyDescriptorCollection dynamicProperties = PropertiesTestHelper.GetAllVisiblePropertyDescriptors(properties);
@@ -183,8 +154,6 @@
                                                                             "In assemblage",
                                                                             "Geeft aan of dit faalmechanisme wordt meegenomen in de assemblage.",
                                                                             true);
-
-            mocks.VerifyAll();
         }
 
         [Test]
@@ -197,14 +166,13 @@
         {
             // Setup
             var mocks = new MockRepository();
-            var assessmentSection = mocks.Stub<IAssessmentSection>();
             var observer = mocks.StrictMock<IObserver>();
             mocks.ReplayAll();
 
             var failureMechanism = new PipingFailureMechanism();
             failureMechanism.Attach(observer);
 
-            var properties = new PipingFailureMechanismProperties(failureMechanism, assessmentSection);
+            var properties = new PipingFailureMechanismProperties(failureMechanism);
 
             // Call
             void Call() => properties.A = value;
@@ -226,15 +194,14 @@
         {
             // Setup
             var mocks = new MockRepository();
-            var assessmentSection = mocks.Stub<IAssessmentSection>();
             var observer = mocks.StrictMock<IObserver>();
             observer.Expect(o => o.UpdateObserver());
             mocks.ReplayAll();
 
             var failureMechanism = new PipingFailureMechanism();
             failureMechanism.Attach(observer);
 
-            var properties = new PipingFailureMechanismProperties(failureMechanism, assessmentSection);
+            var properties = new PipingFailureMechanismProperties(failureMechanism);
 
             // Call
             properties.A = value;
@@ -251,16 +218,12 @@
         public void DynamicVisibleValidationMethod_DependingOnInAssembly_ReturnExpectedVisibility(bool inAssembly)
         {
             // Setup
-            var mocks = new MockRepository();
-            var assessmentSection = mocks.Stub<IAssessmentSection>();
-            mocks.ReplayAll();
-
             var pipingFailureMechanism = new PipingFailureMechanism
             {
                 InAssembly = inAssembly
             };
 
-            var properties = new PipingFailureMechanismProperties(pipingFailureMechanism, assessmentSection);
+            var properties = new PipingFailureMechanismProperties(pipingFailureMechanism);
 
             // Assert
             Assert.IsTrue(properties.DynamicVisibleValidationMethod(nameof(properties.Name)));
@@ -271,8 +234,6 @@
             Assert.AreEqual(inAssembly, properties.DynamicVisibleValidationMethod(nameof(properties.B)));
 
             Assert.IsTrue(properties.DynamicVisibleValidationMethod(null));
-
-            mocks.VerifyAll();
         }
     }
 }
\ No newline at end of file