Index: Ringtoets/Integration/src/Ringtoets.Integration.Data/Ringtoets.Integration.Data.csproj
===================================================================
diff -u -r63fc151e9cf722527465c1eddfa6567a90feb5e6 -r3673d3fc1ad55a8f6d1f21c98b0dfe8d9162c8fd
--- Ringtoets/Integration/src/Ringtoets.Integration.Data/Ringtoets.Integration.Data.csproj	(.../Ringtoets.Integration.Data.csproj)	(revision 63fc151e9cf722527465c1eddfa6567a90feb5e6)
+++ Ringtoets/Integration/src/Ringtoets.Integration.Data/Ringtoets.Integration.Data.csproj	(.../Ringtoets.Integration.Data.csproj)	(revision 3673d3fc1ad55a8f6d1f21c98b0dfe8d9162c8fd)
@@ -12,6 +12,7 @@
   </ItemGroup>
   <ItemGroup>
     <Compile Include="AssessmentSection.cs" />
+    <Compile Include="AssessmentSectionExtensions.cs" />
     <Compile Include="RingtoetsProjectFactory.cs" />
     <Compile Include="RingtoetsProject.cs" />
     <Compile Include="StandAlone\MacrostabilityOutwardsFailureMechanism.cs" />
Index: Ringtoets/Integration/test/Ringtoets.Integration.Data.Test/AssessmentSectionExtensionsTest.cs
===================================================================
diff -u
--- Ringtoets/Integration/test/Ringtoets.Integration.Data.Test/AssessmentSectionExtensionsTest.cs	(revision 0)
+++ Ringtoets/Integration/test/Ringtoets.Integration.Data.Test/AssessmentSectionExtensionsTest.cs	(revision 3673d3fc1ad55a8f6d1f21c98b0dfe8d9162c8fd)
@@ -0,0 +1,169 @@
+// Copyright (C) Stichting Deltares 2017. All rights reserved.
+//
+// This file is part of Ringtoets.
+//
+// Ringtoets 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.ComponentModel;
+using Core.Common.Base.Data;
+using Core.Common.TestUtil;
+using NUnit.Framework;
+using Ringtoets.Common.Data.AssessmentSection;
+using Ringtoets.Common.Data.Contribution;
+using Ringtoets.Common.Data.Hydraulics;
+using Ringtoets.Common.Data.TestUtil;
+
+namespace Ringtoets.Integration.Data.Test
+{
+    [TestFixture]
+    public class AssessmentSectionExtensionsTest
+    {
+        [Test]
+        public void GetNormativeAssessmentLevel_AssessmentSectionNull_ThrowsArgumentNullException()
+        {
+            // Call
+            TestDelegate test = () => AssessmentSectionExtensions.GetNormativeAssessmentLevel(null, new TestHydraulicBoundaryLocation());
+
+            // Assert
+            string paramName = Assert.Throws<ArgumentNullException>(test).ParamName;
+            Assert.AreEqual("assessmentSection", paramName);
+        }
+
+        [Test]
+        public void GetNormativeAssessmentLevel_AssessmentSectionWithInvalidNormType_ThrowsInvalidEnumArgumentException()
+        {
+            // Setup
+            const int invalidValue = 9999;
+            var assessmentSection = new AssessmentSection(AssessmentSectionComposition.Dike)
+            {
+                FailureMechanismContribution =
+                {
+                    NormativeNorm = (NormType) invalidValue
+                }
+            };
+
+            // Call
+            TestDelegate test = () => assessmentSection.GetNormativeAssessmentLevel(new TestHydraulicBoundaryLocation());
+
+            // Assert
+            string expectedMessage = $"The value of argument 'normType' ({invalidValue}) is invalid for Enum type '{nameof(NormType)}'.";
+            string parameterName = TestHelper.AssertThrowsArgumentExceptionAndTestMessage<InvalidEnumArgumentException>(test, expectedMessage).ParamName;
+            Assert.AreEqual("normType", parameterName);
+        }
+
+        [Test]
+        public void GetNormativeAssessmentLevel_HydraulicBoundaryLocationWithOutputAndNormTypeSignaling_ReturnsCorrespondingAssessmentLevel()
+        {
+            // Setup
+            var assessmentSection = new AssessmentSection(AssessmentSectionComposition.Dike)
+            {
+                FailureMechanismContribution =
+                {
+                    NormativeNorm = NormType.Signaling
+                }
+            };
+
+            HydraulicBoundaryLocation hydraulicBoundaryLocationWithOutput = CreateHydraulicBoundaryLocationWithOutput();
+
+            // Call
+            RoundedDouble normativeAssessmentLevel = assessmentSection.GetNormativeAssessmentLevel(hydraulicBoundaryLocationWithOutput);
+
+            // Assert
+            Assert.AreEqual(hydraulicBoundaryLocationWithOutput.DesignWaterLevelCalculation2.Output.Result, normativeAssessmentLevel);
+        }
+
+        [Test]
+        public void GetNormativeAssessmentLevel_HydraulicBoundaryLocationWithOutputAndNormTypeLowerLimit_ReturnsCorrespondingAssessmentLevel()
+        {
+            // Setup
+            var assessmentSection = new AssessmentSection(AssessmentSectionComposition.Dike)
+            {
+                FailureMechanismContribution =
+                {
+                    NormativeNorm = NormType.LowerLimit
+                }
+            };
+
+            HydraulicBoundaryLocation hydraulicBoundaryLocationWithOutput = CreateHydraulicBoundaryLocationWithOutput();
+
+            // Call
+            RoundedDouble normativeAssessmentLevel = assessmentSection.GetNormativeAssessmentLevel(hydraulicBoundaryLocationWithOutput);
+
+            // Assert
+            Assert.AreEqual(hydraulicBoundaryLocationWithOutput.DesignWaterLevelCalculation3.Output.Result, normativeAssessmentLevel);
+        }
+
+        [TestCase(NormType.Signaling)]
+        [TestCase(NormType.LowerLimit)]
+        public void GetNormativeAssessmentLevel_HydraulicBoundaryLocationNull_ReturnsNaN(NormType normType)
+        {
+            // Setup
+            var assessmentSection = new AssessmentSection(AssessmentSectionComposition.Dike)
+            {
+                FailureMechanismContribution =
+                {
+                    NormativeNorm = normType
+                }
+            };
+
+            // Call
+            RoundedDouble normativeAssessmentLevel = assessmentSection.GetNormativeAssessmentLevel(null);
+
+            // Assert
+            Assert.AreEqual(RoundedDouble.NaN, normativeAssessmentLevel);
+        }
+
+        [TestCase(NormType.Signaling)]
+        [TestCase(NormType.LowerLimit)]
+        public void GetNormativeAssessmentLevel_NoCorrespondingAssessmentLevelOutput_ReturnsNaN(NormType normType)
+        {
+            // Setup
+            var assessmentSection = new AssessmentSection(AssessmentSectionComposition.Dike)
+            {
+                FailureMechanismContribution =
+                {
+                    NormativeNorm = normType
+                }
+            };
+
+            // Call
+            RoundedDouble normativeAssessmentLevel = assessmentSection.GetNormativeAssessmentLevel(new TestHydraulicBoundaryLocation());
+
+            // Assert
+            Assert.AreEqual(RoundedDouble.NaN, normativeAssessmentLevel);
+        }
+
+        private static HydraulicBoundaryLocation CreateHydraulicBoundaryLocationWithOutput()
+        {
+            var random = new Random(32);
+
+            return new TestHydraulicBoundaryLocation
+            {
+                DesignWaterLevelCalculation2 =
+                {
+                    Output = new TestHydraulicBoundaryLocationOutput(random.NextDouble())
+                },
+                DesignWaterLevelCalculation3 =
+                {
+                    Output = new TestHydraulicBoundaryLocationOutput(random.NextDouble())
+                }
+            };
+        }
+    }
+}
\ No newline at end of file
Index: Ringtoets/Integration/test/Ringtoets.Integration.Data.Test/Ringtoets.Integration.Data.Test.csproj
===================================================================
diff -u -r63fc151e9cf722527465c1eddfa6567a90feb5e6 -r3673d3fc1ad55a8f6d1f21c98b0dfe8d9162c8fd
--- Ringtoets/Integration/test/Ringtoets.Integration.Data.Test/Ringtoets.Integration.Data.Test.csproj	(.../Ringtoets.Integration.Data.Test.csproj)	(revision 63fc151e9cf722527465c1eddfa6567a90feb5e6)
+++ Ringtoets/Integration/test/Ringtoets.Integration.Data.Test/Ringtoets.Integration.Data.Test.csproj	(.../Ringtoets.Integration.Data.Test.csproj)	(revision 3673d3fc1ad55a8f6d1f21c98b0dfe8d9162c8fd)
@@ -18,6 +18,7 @@
     <Reference Include="System.Core" />
   </ItemGroup>
   <ItemGroup>
+    <Compile Include="AssessmentSectionExtensionsTest.cs" />
     <Compile Include="AssessmentSectionTest.cs" />
     <Compile Include="RingtoetsProjectFactoryTest.cs" />
     <Compile Include="RingtoetsProjectTest.cs" />