diff --git a/DataCenter_Windows/WindowsDataCenter/Interfaces/IRepository.cs b/DataCenter_Windows/WindowsDataCenter/Interfaces/IRepository.cs
index 30f8141..e5e4f59 100644
--- a/DataCenter_Windows/WindowsDataCenter/Interfaces/IRepository.cs
+++ b/DataCenter_Windows/WindowsDataCenter/Interfaces/IRepository.cs
@@ -66,6 +66,10 @@ namespace Interfaces
         /// <see cref="IdentifierList"/> with nested <see cref="Identifier"/> list
         /// </returns>
         IdentifierList GetUnassignedIdentifierList();
+        /// <summary>
+        /// Remove all unassigned identifiers from the system.
+        /// </summary>
+        void ClearUnassignedIdentifiers();
 
         /// <summary>
         /// Update a user in the system with the new values.
diff --git a/DataCenter_Windows/WindowsDataCenter/SQLiteRepository/SQLiteProcedures.cs b/DataCenter_Windows/WindowsDataCenter/SQLiteRepository/SQLiteProcedures.cs
index 9b810f8..bcded4e 100644
--- a/DataCenter_Windows/WindowsDataCenter/SQLiteRepository/SQLiteProcedures.cs
+++ b/DataCenter_Windows/WindowsDataCenter/SQLiteRepository/SQLiteProcedures.cs
@@ -63,6 +63,9 @@ namespace SQLiteRepository
         public const string GET_UNASSIGNED_CARD_LIST =
             "select * from " + nameof(CardUniqueId) + " where " + nameof(CardUniqueId.UserId_FK) + "=?";
 
+        public const string CLEAR_UNASSIGNED_CARDS = 
+            "delete from " + nameof(CardUniqueId) + " where " + nameof(CardUniqueId.UserId_FK) + "=?";
+
         public const string UPDATE_CARD_USER_ID =
             "update " + nameof(CardUniqueId) + " set " + nameof(CardUniqueId.UserId_FK) + "=? where " +
             nameof(CardUniqueId.Id) + "=?";
diff --git a/DataCenter_Windows/WindowsDataCenter/SQLiteRepository/SQLiteRepository.cs b/DataCenter_Windows/WindowsDataCenter/SQLiteRepository/SQLiteRepository.cs
index 01e3a60..c867d5d 100644
--- a/DataCenter_Windows/WindowsDataCenter/SQLiteRepository/SQLiteRepository.cs
+++ b/DataCenter_Windows/WindowsDataCenter/SQLiteRepository/SQLiteRepository.cs
@@ -309,6 +309,13 @@ namespace SQLiteRepository
             return ret;
         }
 
+        public void ClearUnassignedIdentifiers()
+        {
+            _connection.Execute(
+                SQLiteProcedures.CLEAR_UNASSIGNED_CARDS,
+                Constants.UNASSIGNED_CARD_USER_ID);
+        }
+
         //TODO: Check time logs table on update to ensure associated cards/unique identifiers are removed/added as appropriate.
         public OperationResponse UpdateUser(User user, out int userIdResult)
         {
diff --git a/DataCenter_Windows/WindowsDataCenter/SQLiteRepository/SQLiteRepository.csproj b/DataCenter_Windows/WindowsDataCenter/SQLiteRepository/SQLiteRepository.csproj
index eece48e..46517fc 100644
--- a/DataCenter_Windows/WindowsDataCenter/SQLiteRepository/SQLiteRepository.csproj
+++ b/DataCenter_Windows/WindowsDataCenter/SQLiteRepository/SQLiteRepository.csproj
@@ -77,7 +77,6 @@
     <Reference Include="System.Xml" />
   </ItemGroup>
   <ItemGroup>
-    <Compile Include="AssemblyVersionInfo.cs" />
     <Compile Include="CardUniqueId.cs" />
     <Compile Include="DBVersion.cs" />
     <Compile Include="GroupDb.cs" />
@@ -107,9 +106,6 @@
   <ItemGroup>
     <EmbeddedResource Include="UpgradeScripts\0.2.sql" />
   </ItemGroup>
-  <ItemGroup>
-    <EmbeddedResource Include="UpgradeScripts\0.3.sql" />
-  </ItemGroup>
   <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
   <Import Project="..\packages\System.Data.SQLite.Core.1.0.104.0\build\net451\System.Data.SQLite.Core.targets" Condition="Exists('..\packages\System.Data.SQLite.Core.1.0.104.0\build\net451\System.Data.SQLite.Core.targets')" />
   <Target Name="EnsureNuGetPackageBuildImports" BeforeTargets="PrepareForBuild">
diff --git a/DataCenter_Windows/WindowsDataCenter/WindowsDataCenter/Controllers/CardsController.cs b/DataCenter_Windows/WindowsDataCenter/WindowsDataCenter/Controllers/CardsController.cs
index 8908259..ee9d5b5 100644
--- a/DataCenter_Windows/WindowsDataCenter/WindowsDataCenter/Controllers/CardsController.cs
+++ b/DataCenter_Windows/WindowsDataCenter/WindowsDataCenter/Controllers/CardsController.cs
@@ -27,5 +27,15 @@ namespace WindowsDataCenter
             _logger.Trace("Call to GetUnassignedCards, returning {0} items", unassignedCards.data.Count);
             return Ok(unassignedCards);
         }
+
+        [HttpDelete]
+        [Route("unassigned")]
+        [CacheControl(MaxAge = 0)]
+        public IHttpActionResult ClearUnassignedCards()
+        {
+            _repo.ClearUnassignedIdentifiers();
+            _logger.Trace("Call to ClearUnassignedCards, removed all identifiers.");
+            return Ok();
+        }
     }
 }
\ No newline at end of file
diff --git a/DataCenter_Windows/WindowsDataCenter/WindowsDataCenter/www/Admin.html b/DataCenter_Windows/WindowsDataCenter/WindowsDataCenter/www/Admin.html
index c4fcdb6..b6667d0 100644
--- a/DataCenter_Windows/WindowsDataCenter/WindowsDataCenter/www/Admin.html
+++ b/DataCenter_Windows/WindowsDataCenter/WindowsDataCenter/www/Admin.html
@@ -77,7 +77,33 @@
         </form>
     </div>
 </div>
+    <div id="CardManagement" class="container">
+        <div class="row">
+            <h2 class="col-md-4">Unassigned Cards</h2>
+            <button class="col-md-1 btn btn-default pull-right" style="margin-top: 20px;" data-bind="click: $root.clearUnassignedCards">
+                <span class="glyphicon glyphicon-trash"></span>
+            </button>
+        </div>
+        <div class="row">
+            <div data-bind="with: unassignedCardList">
+                <table class="table table-striped">
+                    <thead>
+                        <tr>
+                            <th>Card Unique Id</th>
+                            <th>Last Used Date</th>
+                        </tr>
+                    </thead>
+                    <tbody data-bind="foreach: data">
+                        <tr>
+                            <td data-bind="text: UniqueId"></td>
+                            <td data-bind="text: $root.convertToDisplayDateTime(LastUsed)"></td>
+                        </tr>
+                    </tbody>
+                </table>
+            </div>
+        </div>
+    </div>
     <script src="Helpers.min.js" type="text/javascript"></script>
-    <script src="admin.min.js" type="text/javascript"></script>
+    <script src="admin.js" type="text/javascript"></script>
 </body>
 </html>
\ No newline at end of file
diff --git a/DataCenter_Windows/WindowsDataCenter/WindowsDataCenter/www/admin.js b/DataCenter_Windows/WindowsDataCenter/WindowsDataCenter/www/admin.js
index 964fd63..b912835 100644
--- a/DataCenter_Windows/WindowsDataCenter/WindowsDataCenter/www/admin.js
+++ b/DataCenter_Windows/WindowsDataCenter/WindowsDataCenter/www/admin.js
@@ -2,6 +2,7 @@
     var self = this;
     self.groupsList = ko.observable(null);
     self.groupEditItem = ko.observable(null);
+    self.unassignedCardList = ko.observable(null);
     self.helpers = new Helpers();
     self.uiPages = {
         overview: "overview",
@@ -11,7 +12,9 @@
     self.apiEndpoints = {
         deleteGroups:"/api/groups/delete",
         getGroups: "/api/groups",
-        editGroup: "/api/groups/edit"
+        editGroup: "/api/groups/edit",
+        getUnassignedCards: "/api/cards/unassigned",
+        clearUnassignedCards: "/api/cards/unassigned"
     };
     self.clearGroupForm = function () {
         self.helpers.goToMenuOption(self.uiPages.group);
@@ -69,10 +72,48 @@
                 var errorObj = self.helpers.processRequestFailure(resp, status, error);
             });
     };
+    self.getUnassignedCardData = function() {
+        var url = self.helpers.createRequestUrl(self.apiEndpoints.getUnassignedCards, null, false);
+        $.getJSON(url,
+            function(res) {
+                self.unassignedCardList(res);
+            }).fail(function(resp, status, error) {
+            console.log("error - getUnassignedCards");
+            var errorObj = self.helpers.processRequestFailure(resp, status, error);
+        });
+    };
+    self.clearUnassignedCards = function() {
+        var url = self.helpers.createRequestUrl(self.apiEndpoints.clearUnassignedCards, null, false);
+        $.ajax({
+            type: "DELETE",
+            url: url,
+            data: "",
+            success: function() {
+                self.getUnassignedCardData(); //update
+            },
+            error: function(jqxhr, status, error) {
+                console.log("error - clearUnassignedCards");
+                var errorObj = self.helpers.processRequestFailure(resp, status, error);
+            }
+        });
+    };
+    self.padNumber = function (number) {
+        return (number < 10 ? "0" : "") + number;
+    };
+    self.convertToDisplayDateTime = function (dateValue) {
+        var date = new Date(dateValue); // dd MM YY HH:mm:ss e.g.: 01 Mar 17 17:34:02
+        return date.getDate() + " "
+            + date.toLocaleString("en-us", { month: "long" }) + " "
+            + (date.getYear()-100) + "  "
+            + self.padNumber(date.getHours()) + ":"
+            + self.padNumber(date.getMinutes()) + ":"
+            + self.padNumber(date.getSeconds());
+    };
     Sammy(function () {
         this.disable_push_state = true;
         this.get("#overview", function () {
             self.getGroups();
+            self.getUnassignedCardData();
         });
         this.post("#editgroup", function () {
             self.submitGroupEdit(self.groupEditItem());
diff --git a/DataCenter_Windows/WindowsDataCenter/WindowsDataCenter/www/admin.min.js b/DataCenter_Windows/WindowsDataCenter/WindowsDataCenter/www/admin.min.js
index f6a459f..6a6123e 100644
--- a/DataCenter_Windows/WindowsDataCenter/WindowsDataCenter/www/admin.min.js
+++ b/DataCenter_Windows/WindowsDataCenter/WindowsDataCenter/www/admin.min.js
@@ -1 +1 @@
-function AdminVM(){var n=this;n.groupsList=ko.observable(null);n.groupEditItem=ko.observable(null);n.helpers=new Helpers;n.uiPages={overview:"overview",group:"groups",home:function(){return this.overview}};n.apiEndpoints={deleteGroups:"/api/groups/delete",getGroups:"/api/groups",editGroup:"/api/groups/edit"};n.clearGroupForm=function(){n.helpers.goToMenuOption(n.uiPages.group);n.groupEditItem(null)};n.hideGroupForm=function(){n.groupEditItem(null)};n.newGroupForm=function(){n.groupEditItem({Id:-1,Name:""});n.helpers.goToMenuOption(n.uiPages.group)};n.groupFormHidden=ko.computed(function(){return n.groupEditItem()==null},n);n.editGroupClick=function(t){n.helpers.goToMenuOption(n.uiPages.group);n.groupEditItem(t)};n.getGroups=function(){var t=n.helpers.createRequestUrl(n.apiEndpoints.getGroups,null,!1);$.getJSON(t,function(t){n.groupsList(t)}).fail(function(t,i,r){console.log("error - getGroups");var u=n.helpers.processRequestFailure(t,i,r)})};n.deleteGroup=function(t){var i=n.helpers.createRequestUrl(n.apiEndpoints.deleteGroups,[{key:"groupId",value:t}],!1,!1);$.ajax({url:i,type:"DELETE",success:function(){console.log("deleted "+t);n.hideGroupForm();n.helpers.goToMenuOption(n.uiPages.home())}});console.log("delete: "+t)};n.submitGroupEdit=function(t){var i=n.helpers.createRequestUrl(n.apiEndpoints.editGroup,null,!1);$.post(i,t,function(){},"json").done(function(){n.groupEditItem(null);n.helpers.goToMenuOption(n.uiPages.home())}).fail(function(t,i,r){n.helpers.goToMenuOption(n.uiPages.home());var u=n.helpers.processRequestFailure(t,i,r)})};Sammy(function(){this.disable_push_state=!0;this.get("#overview",function(){n.getGroups()});this.post("#editgroup",function(){return n.submitGroupEdit(n.groupEditItem()),!1});this.get("",function(){this.app.runRoute("get","#"+n.uiPages.home())})}).run()}ko.applyBindings(new AdminVM)
\ No newline at end of file
+function AdminVM(){var n=this;n.groupsList=ko.observable(null);n.groupEditItem=ko.observable(null);n.unassignedCardList=ko.observable(null);n.helpers=new Helpers;n.uiPages={overview:"overview",group:"groups",home:function(){return this.overview}};n.apiEndpoints={deleteGroups:"/api/groups/delete",getGroups:"/api/groups",editGroup:"/api/groups/edit",getUnassignedCards:"/api/cards/unassigned",clearUnassignedCards:"/api/cards/unassigned"};n.clearGroupForm=function(){n.helpers.goToMenuOption(n.uiPages.group);n.groupEditItem(null)};n.hideGroupForm=function(){n.groupEditItem(null)};n.newGroupForm=function(){n.groupEditItem({Id:-1,Name:""});n.helpers.goToMenuOption(n.uiPages.group)};n.groupFormHidden=ko.computed(function(){return n.groupEditItem()==null},n);n.editGroupClick=function(t){n.helpers.goToMenuOption(n.uiPages.group);n.groupEditItem(t)};n.getGroups=function(){var t=n.helpers.createRequestUrl(n.apiEndpoints.getGroups,null,!1);$.getJSON(t,function(t){n.groupsList(t)}).fail(function(t,i,r){console.log("error - getGroups");var u=n.helpers.processRequestFailure(t,i,r)})};n.deleteGroup=function(t){var i=n.helpers.createRequestUrl(n.apiEndpoints.deleteGroups,[{key:"groupId",value:t}],!1,!1);$.ajax({url:i,type:"DELETE",success:function(){console.log("deleted "+t);n.hideGroupForm();n.helpers.goToMenuOption(n.uiPages.home())}});console.log("delete: "+t)};n.submitGroupEdit=function(t){var i=n.helpers.createRequestUrl(n.apiEndpoints.editGroup,null,!1);$.post(i,t,function(){},"json").done(function(){n.groupEditItem(null);n.helpers.goToMenuOption(n.uiPages.home())}).fail(function(t,i,r){n.helpers.goToMenuOption(n.uiPages.home());var u=n.helpers.processRequestFailure(t,i,r)})};n.getUnassignedCardData=function(){var t=n.helpers.createRequestUrl(n.apiEndpoints.getUnassignedCards,null,!1);$.getJSON(t,function(t){n.unassignedCardList(t)}).fail(function(t,i,r){console.log("error - getUnassignedCards");var u=n.helpers.processRequestFailure(t,i,r)})};n.clearUnassignedCards=function(){var t=n.helpers.createRequestUrl(n.apiEndpoints.clearUnassignedCards,null,!1);$.ajax({type:"DELETE",url:t,data:"",success:function(){n.getUnassignedCardData()},error:function(t,i,r){console.log("error - clearUnassignedCards");var u=n.helpers.processRequestFailure(resp,i,r)}})};n.padNumber=function(n){return(n<10?"0":"")+n};n.convertToDisplayDateTime=function(t){var i=new Date(t);return i.getDate()+" "+i.toLocaleString("en-us",{month:"long"})+" "+(i.getYear()-100)+"  "+n.padNumber(i.getHours())+":"+n.padNumber(i.getMinutes())+":"+n.padNumber(i.getSeconds())};Sammy(function(){this.disable_push_state=!0;this.get("#overview",function(){n.getGroups();n.getUnassignedCardData()});this.post("#editgroup",function(){return n.submitGroupEdit(n.groupEditItem()),!1});this.get("",function(){this.app.runRoute("get","#"+n.uiPages.home())})}).run()}ko.applyBindings(new AdminVM)
\ No newline at end of file