Index: Ringtoets/Integration/src/Ringtoets.Integration.Plugin/FileImporters/HydraulicBoundaryDatabaseImporter.cs
===================================================================
diff -u -r2cf2214c4069c98c3cb21708729fcbc2ca964ab6 -r8476d48f3aa0d36c866433c29be238aa52abcfe4
--- Ringtoets/Integration/src/Ringtoets.Integration.Plugin/FileImporters/HydraulicBoundaryDatabaseImporter.cs	(.../HydraulicBoundaryDatabaseImporter.cs)	(revision 2cf2214c4069c98c3cb21708729fcbc2ca964ab6)
+++ Ringtoets/Integration/src/Ringtoets.Integration.Plugin/FileImporters/HydraulicBoundaryDatabaseImporter.cs	(.../HydraulicBoundaryDatabaseImporter.cs)	(revision 8476d48f3aa0d36c866433c29be238aa52abcfe4)
@@ -22,7 +22,6 @@
 using System;
 using System.IO;
 using Core.Common.IO.Exceptions;
-using Core.Common.Utils;
 using Core.Common.Utils.Builders;
 using log4net;
 using Ringtoets.Common.Data.AssessmentSection;
@@ -56,8 +55,8 @@
         private void ValidateAndConnectTo(string filePath)
         {
             hydraulicBoundaryDatabaseReader = new HydraulicBoundarySqLiteDatabaseReader(filePath);
-            string hlcdFilePath = Path.Combine(Path.GetDirectoryName(filePath), "hlcd.sqlite");
 
+            string hlcdFilePath = Path.Combine(Path.GetDirectoryName(filePath), "hlcd.sqlite");
             try
             {
                 hydraulicLocationConfigurationDatabaseReader = new HydraulicLocationConfigurationSqLiteDatabaseReader(hlcdFilePath);
@@ -70,18 +69,6 @@
         }
 
         /// <summary>
-        /// Gets the version of the database.
-        /// </summary>
-        /// <param name="filePath">The path to the database to obtain the version for.</param>
-        /// <returns>The database version.</returns>
-        /// <exception cref="CriticalFileReadException">Thrown when the version could not be obtained from the database.</exception>
-        public string GetHydraulicBoundaryDatabaseVersion(string filePath)
-        {
-            ValidateAndConnectTo(filePath);
-            return hydraulicBoundaryDatabaseReader.GetVersion();
-        }
-
-        /// <summary>
         /// Creates a new instance of <see cref="HydraulicBoundaryDatabase"/>, based upon the data read from 
         /// the hydraulic boundary database file, and saved into <paramref name="targetItem"/>.
         /// </summary>
@@ -99,18 +86,32 @@
         {
             ValidateAndConnectTo(filePath);
 
-            var importResult = GetHydraulicBoundaryDatabase();
-
-            if (importResult == null)
+            var hydraulicBoundaryDatabase = targetItem.HydraulicBoundaryDatabase;
+            if (!IsImportRequired(hydraulicBoundaryDatabase))
             {
-                return false;
+                hydraulicBoundaryDatabase.FilePath = filePath;
             }
+            else
+            {
+                var importResult = GetHydraulicBoundaryDatabase();
 
-            AddImportedDataToModel(targetItem, importResult);
-            log.Info(Resources.HydraulicBoundaryDatabaseImporter_Import_All_hydraulic_locations_read);
+                if (importResult == null)
+                {
+                    return false;
+                }
+
+                AddImportedDataToModel(targetItem, importResult);
+                log.Info(Resources.HydraulicBoundaryDatabaseImporter_Import_All_hydraulic_locations_read);
+            }
+
             return true;
         }
 
+        private bool IsImportRequired(HydraulicBoundaryDatabase hydraulicBoundaryDatabase)
+        {
+            return hydraulicBoundaryDatabase == null || hydraulicBoundaryDatabaseReader.GetVersion() != hydraulicBoundaryDatabase.Version;
+        }
+
         public void Dispose()
         {
             if (hydraulicBoundaryDatabaseReader != null)