Index: Ringtoets/AssemblyTool/src/Ringtoets.AssemblyTool.IO/Model/SerializableFailureMechanismSectionCollection.cs
===================================================================
diff -u -r1f88ea122db66685810334df995c5ce69f164752 -ra30b67748bed77736f62b6b3c30c82649bb9cf4e
--- Ringtoets/AssemblyTool/src/Ringtoets.AssemblyTool.IO/Model/SerializableFailureMechanismSectionCollection.cs	(.../SerializableFailureMechanismSectionCollection.cs)	(revision 1f88ea122db66685810334df995c5ce69f164752)
+++ Ringtoets/AssemblyTool/src/Ringtoets.AssemblyTool.IO/Model/SerializableFailureMechanismSectionCollection.cs	(.../SerializableFailureMechanismSectionCollection.cs)	(revision a30b67748bed77736f62b6b3c30c82649bb9cf4e)
@@ -40,7 +40,8 @@
         /// </summary>
         /// <param name="id">The unique ID of the sections.</param>
         /// <param name="failureMechanism">The failure mechanism the sections belong to.</param>
-        /// <exception cref="ArgumentNullException">Thrown when any parameter is <c>null</c>.</exception>
+        /// <exception cref="ArgumentException">Thrown when <paramref name="id"/> is <c>null</c> or empty.</exception>
+        /// <exception cref="ArgumentNullException">Thrown when <paramref name="failureMechanism"/> parameter is <c>null</c>.</exception>
         public SerializableFailureMechanismSectionCollection(string id,
                                                              SerializableFailureMechanism failureMechanism)
             : this(id)
@@ -58,7 +59,8 @@
         /// </summary>
         /// <param name="id">The unique ID of the sections.</param>
         /// <param name="totalAssemblyResult">The total assembly result the sections belong to.</param>
-        /// <exception cref="ArgumentNullException">Thrown when any parameter is <c>null</c>.</exception>
+        /// <exception cref="ArgumentException">Thrown when <paramref name="id"/> is <c>null</c> or empty.</exception>
+        /// <exception cref="ArgumentNullException">Thrown when <paramref name="totalAssemblyResult"/> parameter is <c>null</c>.</exception>
         public SerializableFailureMechanismSectionCollection(string id,
                                                              SerializableTotalAssemblyResult totalAssemblyResult)
             : this(id)
@@ -75,12 +77,12 @@
         /// Creates a new instance of <see cref="SerializableFailureMechanismSectionCollection"/>.
         /// </summary>
         /// <param name="id">The unique ID of the sections.</param>
-        /// <exception cref="ArgumentNullException">Thrown when <paramref name="id"/> is <c>null</c>.</exception>
+        /// <exception cref="ArgumentException">Thrown when <paramref name="id"/> is <c>null</c> or empty.</exception>
         private SerializableFailureMechanismSectionCollection(string id)
         {
-            if (id == null)
+            if (string.IsNullOrEmpty(id))
             {
-                throw new ArgumentNullException(nameof(id));
+                throw new ArgumentException($@"'{nameof(id)}' must have a value.");
             }
 
             Id = id;