Index: Ringtoets/Integration/src/Ringtoets.Integration.Plugin/Merge/AssessmentSectionProvider.cs
===================================================================
diff -u -r61dc09c91989d5a593858f8939530e7e929ecbf8 -r2ac63d31605f35e43d3d786173bfbae4c1b46c45
--- Ringtoets/Integration/src/Ringtoets.Integration.Plugin/Merge/AssessmentSectionProvider.cs	(.../AssessmentSectionProvider.cs)	(revision 61dc09c91989d5a593858f8939530e7e929ecbf8)
+++ Ringtoets/Integration/src/Ringtoets.Integration.Plugin/Merge/AssessmentSectionProvider.cs	(.../AssessmentSectionProvider.cs)	(revision 2ac63d31605f35e43d3d786173bfbae4c1b46c45)
@@ -19,8 +19,14 @@
 // Stichting Deltares and remain full property of Stichting Deltares at all times.
 // All rights reserved.
 
+using System;
 using System.Collections.Generic;
+using System.Windows.Forms;
+using Core.Common.Gui.Forms.ProgressDialog;
 using Ringtoets.Integration.Data;
+using Ringtoets.Integration.Data.Merge;
+using Ringtoets.Integration.Service.Merge;
+using Ringtoets.Storage.Core;
 
 namespace Ringtoets.Integration.Plugin.Merge
 {
@@ -29,9 +35,44 @@
     /// </summary>
     public class AssessmentSectionProvider : IAssessmentSectionProvider
     {
+        private readonly IWin32Window viewParent;
+        private readonly AssessmentSectionsOwner assessmentSectionsOwner;
+
+        /// <summary>
+        /// Initializes a new instance of <see cref="AssessmentSectionProvider"/>.
+        /// </summary>
+        /// <param name="viewParent">The parent of the view.</param>
+        /// <exception cref="ArgumentNullException">Thrown when <paramref name="viewParent"/>
+        /// is <c>null</c>.</exception>
+        public AssessmentSectionProvider(IWin32Window viewParent)
+        {
+            if (viewParent == null)
+            {
+                throw new ArgumentNullException(nameof(viewParent));
+            }
+
+            this.viewParent = viewParent;
+            assessmentSectionsOwner = new AssessmentSectionsOwner();
+        }
+
         public IEnumerable<AssessmentSection> GetAssessmentSections(string filePath)
         {
-            throw new System.NotImplementedException();
+            if (filePath == null)
+            {
+                throw new ArgumentNullException(nameof(filePath));
+            }
+
+            ActivityProgressDialogRunner.Run(viewParent,
+                                             LoadAssessmentSectionsActivityFactory.CreateLoadAssessmentSectionsActivity(
+                                                 assessmentSectionsOwner, new LoadAssessmentSectionService(new StorageSqLite()),
+                                                 filePath));
+
+            if (assessmentSectionsOwner.AssessmentSections == null)
+            {
+                throw new AssessmentSectionProviderException();
+            }
+
+            return assessmentSectionsOwner.AssessmentSections;
         }
     }
 }
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