diff --git a/src/RoleEditor/EditBerthDialog.xaml b/src/RoleEditor/EditBerthDialog.xaml
index 78ef683..234b02b 100644
--- a/src/RoleEditor/EditBerthDialog.xaml
+++ b/src/RoleEditor/EditBerthDialog.xaml
@@ -5,7 +5,7 @@
         xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
         xmlns:local="clr-namespace:RoleEditor"
         mc:Ignorable="d"
-        Title="Edit berth" Height="160" Width="450" Loaded="Window_Loaded">
+        Title="Edit berth" Height="188" Width="450" Loaded="Window_Loaded">
     <Grid x:Name="berthGrid">
         <Grid.ColumnDefinitions>
             <ColumnDefinition Width=".3*" />
@@ -15,25 +15,37 @@
             <RowDefinition Height="28" />
             <RowDefinition Height="28" />
             <RowDefinition Height="28" />
+            <RowDefinition Height="28" />
             <RowDefinition Height="*" />
             <RowDefinition Height="28" />
         </Grid.RowDefinitions>
         <Label Content="Name" HorizontalAlignment="Right" />
         <TextBox x:Name="textBoxName" Grid.Column="1" Margin="2" VerticalContentAlignment="Center" Text="{Binding Name, Mode=OneWay}" />
-        <Label Content="Participant / Terminal" HorizontalAlignment="Right" Grid.Row="1" />
+        <Label Content="Owner / Terminal" HorizontalAlignment="Right" Grid.Row="1" />
         <Grid Grid.Row="1" Grid.Column="1">
             <Grid.ColumnDefinitions>
                 <ColumnDefinition Width="*" />
                 <ColumnDefinition Width="28" />
             </Grid.ColumnDefinitions>
-            <ComboBox x:Name="comboBoxParticipants" Margin="2" SelectedItem="{Binding Participant, Mode=OneWay}" />
+            <ComboBox x:Name="comboBoxParticipants" Margin="2" SelectedItem="{Binding Owner, Mode=OneWay}" />
             <Button x:Name="buttonResetParticipant" Grid.Column="1" Margin="2" Click="buttonResetParticipant_Click">
                 <Image Source="./Resources/delete2.png"/>
             </Button>
         </Grid>
-        <Label Content="Uses lock" HorizontalAlignment="Right" Grid.Row="2" />
-        <CheckBox x:Name="checkBoxLock" Grid.Row="2" Grid.Column="1" VerticalAlignment="Center" Margin="2" IsChecked="{Binding Path=Lock, Mode=OneWay}"/>
-        <StackPanel Grid.Column="1" Grid.Row="4" Orientation="Horizontal" FlowDirection="RightToLeft">
+        <Label Content="Authority" HorizontalAlignment="Right" Grid.Row="2" />
+        <Grid Grid.Row="2" Grid.Column="1">
+            <Grid.ColumnDefinitions>
+                <ColumnDefinition Width="*" />
+                <ColumnDefinition Width="28" />
+            </Grid.ColumnDefinitions>
+            <ComboBox x:Name="comboBoxAuthorities" Margin="2" SelectedItem="{Binding Authority, Mode=OneWay}" />
+            <Button x:Name="buttonResetAuthority" Grid.Column="1" Margin="2" Click="buttonResetAuthority_Click">
+                <Image Source="./Resources/delete2.png"/>
+            </Button>
+        </Grid>
+        <Label Content="Uses lock" HorizontalAlignment="Right" Grid.Row="3" />
+        <CheckBox x:Name="checkBoxLock" Grid.Row="3" Grid.Column="1" VerticalAlignment="Center" Margin="2" IsChecked="{Binding Path=Lock, Mode=OneWay}"/>
+        <StackPanel Grid.Column="1" Grid.Row="5" Orientation="Horizontal" FlowDirection="RightToLeft">
             <Button x:Name="buttonCancel" Width="80" Content="Cancel" Margin="2" Click="buttonCancel_Click" />
             <Button x:Name="buttonOK" Width="80" Content="OK" Margin="2" Click="buttonOK_Click"/>
         </StackPanel>
diff --git a/src/RoleEditor/EditBerthDialog.xaml.cs b/src/RoleEditor/EditBerthDialog.xaml.cs
index 41cf0ad..9f1a0a3 100644
--- a/src/RoleEditor/EditBerthDialog.xaml.cs
+++ b/src/RoleEditor/EditBerthDialog.xaml.cs
@@ -16,7 +16,9 @@ namespace RoleEditor
 
         public Berth Berth { get; set; } = new Berth();
 
-        public List<Participant> Participants { get; } = new List<Participant>();
+        public List<Participant> Owners { get; } = new List<Participant>();
+
+        public List<Participant> Authorities { get; } = new List<Participant>();
 
         private void buttonCancel_Click(object sender, RoutedEventArgs e)
         {
@@ -28,11 +30,19 @@ namespace RoleEditor
         {
             this.Berth.Name = this.textBoxName.Text.Trim();
             this.Berth.Lock = this.checkBoxLock.IsChecked;
-            this.Berth.Participant = this.comboBoxParticipants.SelectedItem as Participant;
-            if (this.Berth.Participant != null)
-                this.Berth.Participant_Id = this.Berth.Participant.Id;
+            
+            this.Berth.Owner = this.comboBoxParticipants.SelectedItem as Participant;
+            if (this.Berth.Owner != null)
+                this.Berth.Owner_Id = this.Berth.Owner.Id;
             else
-                this.Berth.Participant_Id = null;
+                this.Berth.Owner_Id = null;
+
+            this.Berth.Authority = this.comboBoxAuthorities.SelectedItem as Participant;
+            if (this.Berth.Authority != null)
+                this.Berth.Authority_Id = this.Berth.Authority.Id;
+            else
+                this.Berth.Authority_Id = null;
+
             this.DialogResult = true;
             this.Close();
         }
@@ -40,12 +50,18 @@ namespace RoleEditor
         private void Window_Loaded(object sender, RoutedEventArgs e)
         {
             this.DataContext = this.Berth;
-            this.comboBoxParticipants.ItemsSource = this.Participants;
+            this.comboBoxParticipants.ItemsSource = this.Owners;
+            this.comboBoxAuthorities.ItemsSource = this.Authorities;
         }
 
         private void buttonResetParticipant_Click(object sender, RoutedEventArgs e)
         {
             this.comboBoxParticipants.SelectedItem = null;
         }
+
+        private void buttonResetAuthority_Click(object sender, RoutedEventArgs e)
+        {
+            this.comboBoxAuthorities.SelectedItem = null;
+        }
     }
 }
diff --git a/src/RoleEditor/MainWindow.xaml b/src/RoleEditor/MainWindow.xaml
index 67e58e5..7489d21 100644
--- a/src/RoleEditor/MainWindow.xaml
+++ b/src/RoleEditor/MainWindow.xaml
@@ -261,6 +261,7 @@
                             <DataGridTextColumn Header="Name" Binding="{Binding Path=Name}" IsReadOnly="True"/>
                             <DataGridCheckBoxColumn Header="Lock" Binding="{Binding Path=Lock}" IsReadOnly="True"/>
                             <DataGridTextColumn Header="Terminal" Binding="{Binding Path=Terminal, Mode=OneWay}" IsReadOnly="True"/>
+                            <DataGridTextColumn Header="Authority" Binding="{Binding Path=Authority_Text, Mode=OneWay}" IsReadOnly="True" />
                         </DataGrid.Columns>
                     </local:ENIDataGrid>
                 </Grid>
diff --git a/src/RoleEditor/MainWindow.xaml.cs b/src/RoleEditor/MainWindow.xaml.cs
index c3b4cef..9514203 100644
--- a/src/RoleEditor/MainWindow.xaml.cs
+++ b/src/RoleEditor/MainWindow.xaml.cs
@@ -28,6 +28,9 @@ namespace RoleEditor
         #region private fields
 
         private readonly ObservableCollection<Participant> _participants = new ObservableCollection<Participant>();
+        private readonly ObservableCollection<Participant> _terminals = new ObservableCollection<Participant>();
+        private readonly ObservableCollection<Participant> _authorities = new ObservableCollection<Participant>();
+
         private readonly ObservableCollection<Role> _roles = new ObservableCollection<Role>();
         private readonly ObservableCollection<Securable> _securables = new ObservableCollection<Securable>();
         private readonly ObservableCollection<User> _users = new ObservableCollection<User>();
@@ -56,8 +59,12 @@ namespace RoleEditor
 
                 // load all participants
                 List<Participant> participants = await Participant.LoadAll(_dbManager);
-                foreach(Participant p in participants)
+                foreach (Participant p in participants)
+                {
                     _participants.Add(p);
+                    if(p.IsTypeFlagSet(Participant.ParticipantType.TERMINAL)) { _terminals.Add(p); }
+                    if(p.IsTypeFlagSet(Participant.ParticipantType.PORT_ADMINISTRATION)) { _authorities.Add(p); }
+                }
                 this.listBoxParticipant.ItemsSource = _participants;
 
                 // load all roles
@@ -74,9 +81,13 @@ namespace RoleEditor
                 foreach (Berth b in await Berth.LoadAll(_dbManager))
                 {
                     _berths.Add(b);
-                    if(b.Participant_Id != null)
+                    if (b.Owner_Id != null)
                     {
-                        b.Participant = participants.Where( p => p.Id== b.Participant_Id ).FirstOrDefault();
+                        b.Owner = participants.Where(p => p.Id == b.Owner_Id).FirstOrDefault();
+                    }
+                    if (b.Authority_Id != null)
+                    {
+                        b.Authority = participants.Where(p => p.Id == b.Authority_Id).FirstOrDefault();
                     }
                 }
                 this.dataGridBerths.Initialize();
@@ -173,7 +184,8 @@ namespace RoleEditor
             {
                 EditBerthDialog ebd = new();
                 ebd.Berth = b;
-                ebd.Participants.AddRange(this._participants);
+                ebd.Owners.AddRange(this._terminals);
+                ebd.Authorities.AddRange(this._authorities);
                 if (ebd.ShowDialog() ?? false)
                 {
                     await b.Save(_dbManager);
@@ -188,7 +200,8 @@ namespace RoleEditor
             Berth b = new();
             EditBerthDialog ebd = new();
             ebd.Berth = b;
-            ebd.Participants.AddRange(this._participants);
+            ebd.Owners.AddRange(this._terminals);
+            ebd.Authorities.AddRange(this._authorities);
             if (ebd.ShowDialog() ?? false)
             {
                 _berths.Add(b);
@@ -634,7 +647,7 @@ namespace RoleEditor
                                 {
                                     if ((p.Name != null) && p.Name.Contains(participant_name, StringComparison.OrdinalIgnoreCase))
                                     {
-                                        b.Participant_Id = p.Id;
+                                        b.Owner_Id = p.Id;
                                         found_participant = true;
                                         break;
                                     }
@@ -649,7 +662,7 @@ namespace RoleEditor
                                     await p.Save(_dbManager);
                                     _participants.Add(p);
                                     pCounter++;
-                                    b.Participant_Id = p.Id;
+                                    b.Owner_Id = p.Id;
                                 }
 
                                 await b.Save(_dbManager);
diff --git a/src/brecal.model/Berth.cs b/src/brecal.model/Berth.cs
index 11d675b..12fed2d 100644
--- a/src/brecal.model/Berth.cs
+++ b/src/brecal.model/Berth.cs
@@ -1,4 +1,7 @@
-using System;
+// Copyright (c) 2023- schick Informatik
+// Description: Model class for berth entity
+
+using System;
 using System.Collections.Generic;
 using System.Data;
 using System.Linq;
@@ -16,11 +19,17 @@ namespace brecal.model
 
         public bool? Lock { get; set; }
 
-        public uint? Participant_Id { get; set; }
+        public uint? Owner_Id { get; set; }
 
-        public Participant? Participant { get; set; }
+        public uint? Authority_Id { get; set; }
 
-        public string? Terminal { get { if (Participant != null) return Participant.Name; else return "n/a";  } }
+        public Participant? Owner { get; set; }
+
+        public Participant? Authority { get; set; }
+
+        public string? Terminal { get { if (Owner != null) return Owner.Name; else return "n/a";  } }
+
+        public string? Authority_Text { get { if (Authority != null) return Authority.Name; else return "n/a"; } }
 
         #endregion
 
@@ -37,7 +46,7 @@ namespace brecal.model
 
         public static void SetLoadQuery(IDbCommand cmd, params object?[] list)
         {
-            cmd.CommandText = "SELECT id, name, participant_id, `lock`, created, modified FROM berth";
+            cmd.CommandText = "SELECT id, name, owner_id, authority_id, `lock`, created, modified FROM berth";
         }
 
         public static List<DbEntity> LoadElems(IDataReader reader)
@@ -48,10 +57,11 @@ namespace brecal.model
                 Berth b = new();
                 b.Id = (uint)reader.GetInt32(0);
                 if (!reader.IsDBNull(1)) b.Name = reader.GetString(1);
-                if (!reader.IsDBNull(2)) b.Participant_Id = (uint) reader.GetInt32(2);
-                if (!reader.IsDBNull(3)) b.Lock = reader.GetBoolean(3);
-                if (!reader.IsDBNull(4)) b.Created = reader.GetDateTime(4);
-                if (!reader.IsDBNull(5)) b.Modified = reader.GetDateTime(5);
+                if (!reader.IsDBNull(2)) b.Owner_Id = (uint) reader.GetInt32(2);
+                if (!reader.IsDBNull(3)) b.Authority_Id = (uint) reader.GetInt32(3);
+                if (!reader.IsDBNull(4)) b.Lock = reader.GetBoolean(4);
+                if (!reader.IsDBNull(5)) b.Created = reader.GetDateTime(5);
+                if (!reader.IsDBNull(6)) b.Modified = reader.GetDateTime(6);
                 result.Add(b);
             }
             return result;
@@ -63,7 +73,7 @@ namespace brecal.model
 
         public override void SetCreate(IDbCommand cmd)
         {
-            cmd.CommandText = "INSERT INTO berth (participant_id, name, `lock`) VALUES ( @PID, @NAME, @LOCK)";
+            cmd.CommandText = "INSERT INTO berth (owner_id, authority_id, name, `lock`) VALUES ( @PID, @AID, @NAME, @LOCK)";
             this.SetParameters(cmd);
         }
 
@@ -79,7 +89,7 @@ namespace brecal.model
 
         public override void SetUpdate(IDbCommand cmd)
         {            
-            cmd.CommandText = "UPDATE berth SET name = @NAME, participant_id = @PID, `lock` = @LOCK WHERE id = @ID";            
+            cmd.CommandText = "UPDATE berth SET name = @NAME, owner_id = @PID, authority_id = @AID, `lock` = @LOCK WHERE id = @ID";            
             this.SetParameters(cmd);
         }
 
@@ -96,9 +106,14 @@ namespace brecal.model
 
             IDbDataParameter pid = cmd.CreateParameter();
             pid.ParameterName = "PID";
-            pid.Value = this.Participant_Id;
+            pid.Value = this.Owner_Id;
             cmd.Parameters.Add(pid);
 
+            IDbDataParameter aid = cmd.CreateParameter();
+            aid.ParameterName = "AID";
+            aid.Value = this.Authority_Id;
+            cmd.Parameters.Add(aid);
+
             IDbDataParameter name = cmd.CreateParameter();
             name.ParameterName = "NAME";
             name.Value = this.Name;