Index: Riskeer/Common/src/Riskeer.Common.Forms/ChangeHandlers/FailureMechanismCalculationChangeHandler.cs
===================================================================
diff -u -re9b8aa3e972b9f07a3201f143c26de0e3f082d49 -r1d485f4f9416ec6bc8453ed4bb22fa23e0e2984f
--- Riskeer/Common/src/Riskeer.Common.Forms/ChangeHandlers/FailureMechanismCalculationChangeHandler.cs	(.../FailureMechanismCalculationChangeHandler.cs)	(revision e9b8aa3e972b9f07a3201f143c26de0e3f082d49)
+++ Riskeer/Common/src/Riskeer.Common.Forms/ChangeHandlers/FailureMechanismCalculationChangeHandler.cs	(.../FailureMechanismCalculationChangeHandler.cs)	(revision 1d485f4f9416ec6bc8453ed4bb22fa23e0e2984f)
@@ -34,7 +34,6 @@
     public class FailureMechanismCalculationChangeHandler : IConfirmDataChangeHandler
     {
         private readonly string query;
-        private readonly IFailureMechanism failureMechanism;
         private readonly IInquiryHelper inquiryHandler;
 
         /// <summary>
@@ -63,19 +62,24 @@
                 throw new ArgumentNullException(nameof(inquiryHandler));
             }
 
-            this.failureMechanism = failureMechanism;
+            FailureMechanism = failureMechanism;
             this.query = query;
             this.inquiryHandler = inquiryHandler;
         }
 
-        public bool RequireConfirmation()
+        public virtual bool RequireConfirmation()
         {
-            return failureMechanism.Calculations.Any(calc => calc.HasOutput);
+            return FailureMechanism.Calculations.Any(calc => calc.HasOutput);
         }
 
         public bool InquireConfirmation()
         {
             return inquiryHandler.InquireContinuation(query);
         }
+
+        /// <summary>
+        /// Gets the <see cref="IFailureMechanism"/>.
+        /// </summary>
+        protected IFailureMechanism FailureMechanism { get; }
     }
 }
\ No newline at end of file
Index: Riskeer/Piping/src/Riskeer.Piping.Forms/ChangeHandlers/PipingFailureMechanismCalculationChangeHandler.cs
===================================================================
diff -u
--- Riskeer/Piping/src/Riskeer.Piping.Forms/ChangeHandlers/PipingFailureMechanismCalculationChangeHandler.cs	(revision 0)
+++ Riskeer/Piping/src/Riskeer.Piping.Forms/ChangeHandlers/PipingFailureMechanismCalculationChangeHandler.cs	(revision 1d485f4f9416ec6bc8453ed4bb22fa23e0e2984f)
@@ -0,0 +1,55 @@
+// Copyright (C) Stichting Deltares 2019. All rights reserved.
+//
+// This file is part of Riskeer.
+//
+// Riskeer is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+// 
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program. If not, see <http://www.gnu.org/licenses/>.
+//
+// All names, logos, and references to "Deltares" are registered trademarks of
+// Stichting Deltares and remain full property of Stichting Deltares at all times.
+// All rights reserved.
+
+using System;
+using System.Linq;
+using Core.Common.Gui.Helpers;
+using Riskeer.Common.Forms.ChangeHandlers;
+using Riskeer.Piping.Data;
+using Riskeer.Piping.Data.Probabilistic;
+
+namespace Riskeer.Piping.Forms.ChangeHandlers
+{
+    /// <summary>
+    /// Class which can, if required, inquire the user for a confirmation when a change to the
+    /// <see cref="PipingFailureMechanism"/> requires calculation results to be altered.
+    /// </summary>
+    public class PipingFailureMechanismCalculationChangeHandler : FailureMechanismCalculationChangeHandler
+    {
+        /// <summary>
+        /// Creates a new instance of <see cref="PipingFailureMechanismCalculationChangeHandler"/>.
+        /// </summary>
+        /// <param name="failureMechanism"><see cref="PipingFailureMechanism"/> for which to handle changes.</param>
+        /// <param name="query">The query which should be displayed when inquiring for a confirmation.</param>
+        /// <param name="inquiryHandler">Object responsible for inquiring required data.</param>
+        /// <exception cref="ArgumentNullException">Thrown when any input parameter is <c>null</c>.</exception>
+        public PipingFailureMechanismCalculationChangeHandler(PipingFailureMechanism failureMechanism,
+                                                              string query, IInquiryHelper inquiryHandler)
+            : base(failureMechanism, query, inquiryHandler) {}
+
+        public override bool RequireConfirmation()
+        {
+            return FailureMechanism.Calculations
+                                   .OfType<ProbabilisticPipingCalculationScenario>()
+                                   .Any(c => c.HasOutput);
+        }
+    }
+}
\ No newline at end of file
Index: Riskeer/Piping/test/Riskeer.Piping.Forms.Test/ChangeHandlers/PipingFailureMechanismCalculationChangeHandlerTest.cs
===================================================================
diff -u
--- Riskeer/Piping/test/Riskeer.Piping.Forms.Test/ChangeHandlers/PipingFailureMechanismCalculationChangeHandlerTest.cs	(revision 0)
+++ Riskeer/Piping/test/Riskeer.Piping.Forms.Test/ChangeHandlers/PipingFailureMechanismCalculationChangeHandlerTest.cs	(revision 1d485f4f9416ec6bc8453ed4bb22fa23e0e2984f)
@@ -0,0 +1,120 @@
+// Copyright (C) Stichting Deltares 2019. All rights reserved.
+//
+// This file is part of Riskeer.
+//
+// Riskeer is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+// 
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program. If not, see <http://www.gnu.org/licenses/>.
+//
+// All names, logos, and references to "Deltares" are registered trademarks of
+// Stichting Deltares and remain full property of Stichting Deltares at all times.
+// All rights reserved.
+
+using Core.Common.Gui.Helpers;
+using NUnit.Framework;
+using Rhino.Mocks;
+using Riskeer.Common.Forms.ChangeHandlers;
+using Riskeer.Piping.Data;
+using Riskeer.Piping.Data.Probabilistic;
+using Riskeer.Piping.Data.SemiProbabilistic;
+using Riskeer.Piping.Data.TestUtil;
+using Riskeer.Piping.Forms.ChangeHandlers;
+
+namespace Riskeer.Piping.Forms.Test.ChangeHandlers
+{
+    [TestFixture]
+    public class PipingFailureMechanismCalculationChangeHandlerTest
+    {
+        [Test]
+        public void Constructor_ExpectedValues()
+        {
+            // Setup
+            var mocks = new MockRepository();
+            var inquiryHelper = mocks.Stub<IInquiryHelper>();
+            mocks.ReplayAll();
+
+            // Call
+            var changeHandler = new PipingFailureMechanismCalculationChangeHandler(new PipingFailureMechanism(), string.Empty, inquiryHelper);
+
+            // Assert
+            Assert.IsInstanceOf<FailureMechanismCalculationChangeHandler>(changeHandler);
+            mocks.VerifyAll();
+        }
+
+        [Test]
+        public void RequireConfirmation_NoProbabilisticCalculations_ReturnsFalse()
+        {
+            // Setup
+            var mocks = new MockRepository();
+            var inquiryHelper = mocks.Stub<IInquiryHelper>();
+            mocks.ReplayAll();
+
+            var failureMechanism = new PipingFailureMechanism();
+            failureMechanism.CalculationsGroup.Children.AddRange(new IPipingCalculationScenario<PipingInput>[]
+            {
+                new SemiProbabilisticPipingCalculationScenario(),
+                new TestPipingCalculationScenario()
+            });
+
+            var changeHandler = new PipingFailureMechanismCalculationChangeHandler(failureMechanism, string.Empty, inquiryHelper);
+
+            // Call
+            bool requireConfirmation = changeHandler.RequireConfirmation();
+
+            // Assert
+            Assert.IsFalse(requireConfirmation);
+        }
+
+        [Test]
+        public void RequireConfirmation_ProbabilisticCalculationsWithoutOutput_ReturnsFalse()
+        {
+            // Setup
+            var mocks = new MockRepository();
+            var inquiryHelper = mocks.Stub<IInquiryHelper>();
+            mocks.ReplayAll();
+
+            var failureMechanism = new PipingFailureMechanism();
+            failureMechanism.CalculationsGroup.Children.Add(new ProbabilisticPipingCalculationScenario());
+
+            var changeHandler = new PipingFailureMechanismCalculationChangeHandler(failureMechanism, string.Empty, inquiryHelper);
+
+            // Call
+            bool requireConfirmation = changeHandler.RequireConfirmation();
+
+            // Assert
+            Assert.IsFalse(requireConfirmation);
+        }
+
+        [Test]
+        public void RequireConfirmation_ProbabilisticCalculationsWithOutput_ReturnsTrue()
+        {
+            // Setup
+            var mocks = new MockRepository();
+            var inquiryHelper = mocks.Stub<IInquiryHelper>();
+            mocks.ReplayAll();
+
+            var failureMechanism = new PipingFailureMechanism();
+            failureMechanism.CalculationsGroup.Children.Add(new ProbabilisticPipingCalculationScenario
+            {
+                Output = PipingTestDataGenerator.GetRandomProbabilisticPipingOutputWithIllustrationPoints()
+            });
+
+            var changeHandler = new PipingFailureMechanismCalculationChangeHandler(failureMechanism, string.Empty, inquiryHelper);
+
+            // Call
+            bool requireConfirmation = changeHandler.RequireConfirmation();
+
+            // Assert
+            Assert.IsTrue(requireConfirmation);
+        }
+    }
+}
\ No newline at end of file