Index: Ringtoets/GrassCoverErosionOutwards/src/Ringtoets.GrassCoverErosionOutwards.Forms/PropertyClasses/GrassCoverErosionOutwardsWaveConditionsInputContextProperties.cs
===================================================================
diff -u -rbbb17c2543d152e7567251a0432d59b4db72f33b -rbb7d45597fde9aa9066da6454e833aebbea32908
--- Ringtoets/GrassCoverErosionOutwards/src/Ringtoets.GrassCoverErosionOutwards.Forms/PropertyClasses/GrassCoverErosionOutwardsWaveConditionsInputContextProperties.cs	(.../GrassCoverErosionOutwardsWaveConditionsInputContextProperties.cs)	(revision bbb17c2543d152e7567251a0432d59b4db72f33b)
+++ Ringtoets/GrassCoverErosionOutwards/src/Ringtoets.GrassCoverErosionOutwards.Forms/PropertyClasses/GrassCoverErosionOutwardsWaveConditionsInputContextProperties.cs	(.../GrassCoverErosionOutwardsWaveConditionsInputContextProperties.cs)	(revision bb7d45597fde9aa9066da6454e833aebbea32908)
@@ -40,14 +40,13 @@
         /// </summary>
         /// <param name="context">The <see cref="GrassCoverErosionOutwardsWaveConditionsInputContext"/> for which 
         /// the properties are shown.</param>
-        /// <param name="normativeAssessmentLevel">The normative assessment level.</param>
+        /// <param name="getNormativeAssessmentLevelFunc"><see cref="Func{TResult}"/> for obtaining the normative assessment level.</param>
         /// <param name="propertyChangeHandler">The handler responsible for handling effects of a property change.</param>
-        /// <exception cref="ArgumentNullException">Thrown when <paramref name="context"/> or
-        /// <paramref name="propertyChangeHandler"/> is <c>null</c>.</exception>
+        /// <exception cref="ArgumentNullException">Thrown when any parameter is <c>null</c>.</exception>
         public GrassCoverErosionOutwardsWaveConditionsInputContextProperties(GrassCoverErosionOutwardsWaveConditionsInputContext context,
-                                                                             RoundedDouble normativeAssessmentLevel,
+                                                                             Func<RoundedDouble> getNormativeAssessmentLevelFunc,
                                                                              IObservablePropertyChangeHandler propertyChangeHandler)
-            : base(context, normativeAssessmentLevel, propertyChangeHandler) {}
+            : base(context, getNormativeAssessmentLevelFunc(), propertyChangeHandler) {}
 
         [ResourcesDisplayName(typeof(Resources), nameof(Resources.GrassCoverErosionOutwardsHydraulicBoundaryLocation_DesignWaterLevel_DisplayName))]
         [ResourcesDescription(typeof(Resources), nameof(Resources.GrassCoverErosionOutwardsWaveConditionsInputContextProperties_DesignWaterLevel_Description))]