diff --git a/core/modules/user/lib/Drupal/user/AccountSettingsForm.php b/core/modules/user/lib/Drupal/user/AccountSettingsForm.php
new file mode 100644
index 0000000..b3d0d17
--- /dev/null
+++ b/core/modules/user/lib/Drupal/user/AccountSettingsForm.php
@@ -0,0 +1,449 @@
+<?php
+
+/**
+ * @file
+ * Contains \Drupal\user\AccountSettingsForm.
+ */
+
+namespace Drupal\user;
+
+use Drupal\system\SystemConfigFormBase;
+use Drupal\Core\Config\ConfigFactory;
+use Drupal\Core\Config\Context\ContextInterface;
+use Drupal\Core\Extension\ModuleHandler;
+use Symfony\Component\DependencyInjection\ContainerInterface;
+
+/**
+ * Configure user settings for this site.
+ */
+class AccountSettingsForm extends SystemConfigFormBase {
+
+  /**
+   * The module handler.
+   *
+   * @var \Drupal\Core\Extension\ModuleHandler
+   */
+  protected $moduleHandler;
+
+  /**
+   * Constructs a \Drupal\user\AccountSettingsForm object.
+   *
+   * @param \Drupal\Core\Config\ConfigFactory $config_factory
+   *   The factory for configuration objects.
+   * @param \Drupal\Core\Config\Context\ContextInterface $context
+   *   The configuration context.
+   * @param \Drupal\Core\Extension\ModuleHandler $module_handler
+   *   The module handler.
+   */
+  public function __construct(ConfigFactory $config_factory, ContextInterface $context, ModuleHandler $module_handler) {
+    parent::__construct($config_factory, $context);
+    $this->moduleHandler = $module_handler;
+  }
+
+  /**
+   * Implements \Drupal\Core\ControllerInterface::create().
+   */
+  public static function create(ContainerInterface $container) {
+    return new static(
+      $container->get('config.factory'),
+      $container->get('config.context.free'),
+      $container->get('module_handler')
+    );
+  }
+
+  /**
+   * Implements \Drupal\Core\Form\FormInterface::getFormID().
+   */
+  public function getFormID() {
+    return 'user_admin_settings';
+  }
+
+  /**
+   * Implements \Drupal\Core\Form\FormInterface::buildForm().
+   */
+  public function buildForm(array $form, array &$form_state) {
+    $config = $this->configFactory->get('user.settings');
+    $mail_config = $this->configFactory->get('user.mail');
+    $site_config = $this->configFactory->get('system.site');
+
+    // Settings for anonymous users.
+    $form['anonymous_settings'] = array(
+      '#type' => 'details',
+      '#title' => t('Anonymous users'),
+    );
+    $form['anonymous_settings']['anonymous'] = array(
+      '#type' => 'textfield',
+      '#title' => t('Name'),
+      '#default_value' => $config->get('anonymous'),
+      '#description' => t('The name used to indicate anonymous users.'),
+      '#required' => TRUE,
+    );
+
+    // Administrative role option.
+    $form['admin_role'] = array(
+      '#type' => 'details',
+      '#title' => t('Administrator role'),
+    );
+    // Do not allow users to set the anonymous or authenticated user roles as the
+    // administrator role.
+    $roles = user_role_names(TRUE);
+    unset($roles[DRUPAL_AUTHENTICATED_RID]);
+    $form['admin_role']['user_admin_role'] = array(
+      '#type' => 'select',
+      '#title' => t('Administrator role'),
+      '#empty_value' => '',
+      '#default_value' => $config->get('admin_role'),
+      '#options' => $roles,
+      '#description' => t('This role will be automatically assigned new permissions whenever a module is enabled. Changing this setting will not affect existing permissions.'),
+    );
+
+    // @todo Remove this check once language settings are generalized.
+    if ($this->moduleHandler->moduleExists('translation_entity')) {
+      $form['language'] = array(
+        '#type' => 'details',
+        '#title' => t('Language settings'),
+        '#tree' => TRUE,
+      );
+      $form_state['translation_entity']['key'] = 'language';
+      $form['language'] += translation_entity_enable_widget('user', 'user', $form, $form_state);
+    }
+
+    // User registration settings.
+    $form['registration_cancellation'] = array(
+      '#type' => 'details',
+      '#title' => t('Registration and cancellation'),
+    );
+    $form['registration_cancellation']['user_register'] = array(
+      '#type' => 'radios',
+      '#title' => t('Who can register accounts?'),
+      '#default_value' => $config->get('register'),
+      '#options' => array(
+        USER_REGISTER_ADMINISTRATORS_ONLY => t('Administrators only'),
+        USER_REGISTER_VISITORS => t('Visitors'),
+        USER_REGISTER_VISITORS_ADMINISTRATIVE_APPROVAL => t('Visitors, but administrator approval is required'),
+      )
+    );
+    $form['registration_cancellation']['user_email_verification'] = array(
+      '#type' => 'checkbox',
+      '#title' => t('Require e-mail verification when a visitor creates an account.'),
+      '#default_value' => $config->get('verify_mail'),
+      '#description' => t('New users will be required to validate their e-mail address prior to logging into the site, and will be assigned a system-generated password. With this setting disabled, users will be logged in immediately upon registering, and may select their own passwords during registration.')
+    );
+    $form['registration_cancellation']['user_password_strength'] = array(
+      '#type' => 'checkbox',
+      '#title' => t('Enable password strength indicator'),
+      '#default_value' => $config->get('password_strength'),
+    );
+    form_load_include($form_state, 'inc', 'user', 'user.pages');
+    $form['registration_cancellation']['user_cancel_method'] = array(
+      '#type' => 'radios',
+      '#title' => t('When cancelling a user account'),
+      '#default_value' => $config->get('cancel_method'),
+      '#description' => t('Users with the %select-cancel-method or %administer-users <a href="@permissions-url">permissions</a> can override this default method.', array('%select-cancel-method' => t('Select method for cancelling account'), '%administer-users' => t('Administer users'), '@permissions-url' => url('admin/people/permissions'))),
+    );
+    $form['registration_cancellation']['user_cancel_method'] += user_cancel_methods();
+    foreach (element_children($form['registration_cancellation']['user_cancel_method']) as $key) {
+      // All account cancellation methods that specify #access cannot be
+      // configured as default method.
+      // @see hook_user_cancel_methods_alter()
+      if (isset($form['registration_cancellation']['user_cancel_method'][$key]['#access'])) {
+        $form['registration_cancellation']['user_cancel_method'][$key]['#access'] = FALSE;
+      }
+    }
+
+    // Account settings.
+    $form['personalization'] = array(
+      '#type' => 'details',
+      '#title' => t('Personalization'),
+    );
+    $form['personalization']['user_signatures'] = array(
+      '#type' => 'checkbox',
+      '#title' => t('Enable signatures.'),
+      '#default_value' => $config->get('signatures'),
+    );
+
+    // Default notifications address.
+    $form['mail_notification_address'] = array(
+      '#type' => 'email',
+      '#title' => t('Notification e-mail address'),
+      '#default_value' => $site_config->get('mail_notification'),
+      '#description' => t("The e-mail address to be used as the 'from' address for all account notifications listed below. If <em>'Visitors, but administrator approval is required'</em> is selected above, a notification email will also be sent to this address for any new registrations. Leave empty to use the default system e-mail address <em>(%site-email).</em>", array('%site-email' => $site_config->get('mail'))),
+      '#maxlength' => 180,
+    );
+
+    $form['email'] = array(
+      '#type' => 'vertical_tabs',
+      '#title' => t('E-mails'),
+    );
+    // These email tokens are shared for all settings, so just define
+    // the list once to help ensure they stay in sync.
+    $email_token_help = t('Available variables are: [site:name], [site:url], [user:name], [user:mail], [site:login-url], [site:url-brief], [user:edit-url], [user:one-time-login-url], [user:cancel-url].');
+
+    $form['email_admin_created'] = array(
+      '#type' => 'details',
+      '#title' => t('Welcome (new user created by administrator)'),
+      '#collapsed' => ($config->get('register') != USER_REGISTER_ADMINISTRATORS_ONLY),
+      '#description' => t('Edit the welcome e-mail messages sent to new member accounts created by an administrator.') . ' ' . $email_token_help,
+      '#group' => 'email',
+    );
+    $form['email_admin_created']['user_mail_register_admin_created_subject'] = array(
+      '#type' => 'textfield',
+      '#title' => t('Subject'),
+      '#default_value' => $mail_config->get('register_admin_created.subject'),
+      '#maxlength' => 180,
+    );
+    $form['email_admin_created']['user_mail_register_admin_created_body'] = array(
+      '#type' => 'textarea',
+      '#title' => t('Body'),
+      '#default_value' =>  $mail_config->get('register_admin_created.body'),
+      '#rows' => 15,
+    );
+
+    $form['email_pending_approval'] = array(
+      '#type' => 'details',
+      '#title' => t('Welcome (awaiting approval)'),
+      '#collapsed' => ($config->get('register') != USER_REGISTER_VISITORS_ADMINISTRATIVE_APPROVAL),
+      '#description' => t('Edit the welcome e-mail messages sent to new members upon registering, when administrative approval is required.') . ' ' . $email_token_help,
+      '#group' => 'email',
+    );
+    $form['email_pending_approval']['user_mail_register_pending_approval_subject'] = array(
+      '#type' => 'textfield',
+      '#title' => t('Subject'),
+      '#default_value' => $mail_config->get('register_pending_approval.subject'),
+      '#maxlength' => 180,
+    );
+    $form['email_pending_approval']['user_mail_register_pending_approval_body'] = array(
+      '#type' => 'textarea',
+      '#title' => t('Body'),
+      '#default_value' => $mail_config->get('register_pending_approval.body'),
+      '#rows' => 8,
+    );
+
+    $form['email_pending_approval_admin'] = array(
+      '#type' => 'details',
+      '#title' => t('Admin (user awaiting approval)'),
+      '#collapsed' => ($config->get('register') != USER_REGISTER_VISITORS_ADMINISTRATIVE_APPROVAL),
+      '#description' => t('Edit the e-mail notifying the site administrator that there are new members awaiting administrative approval.') . ' ' . $email_token_help,
+      '#group' => 'email',
+    );
+    $form['email_pending_approval_admin']['register_pending_approval_admin_subject'] = array(
+      '#type' => 'textfield',
+      '#title' => t('Subject'),
+      '#default_value' => $mail_config->get('register_pending_approval_admin.subject'),
+      '#maxlength' => 180,
+    );
+    $form['email_pending_approval_admin']['register_pending_approval_admin_body'] = array(
+      '#type' => 'textarea',
+      '#title' => t('Body'),
+      '#default_value' => $mail_config->get('register_pending_approval_admin.body'),
+      '#rows' => 8,
+    );
+
+    $form['email_no_approval_required'] = array(
+      '#type' => 'details',
+      '#title' => t('Welcome (no approval required)'),
+      '#collapsed' => ($config->get('register') != USER_REGISTER_VISITORS),
+      '#description' => t('Edit the welcome e-mail messages sent to new members upon registering, when no administrator approval is required.') . ' ' . $email_token_help,
+      '#group' => 'email',
+    );
+    $form['email_no_approval_required']['user_mail_register_no_approval_required_subject'] = array(
+      '#type' => 'textfield',
+      '#title' => t('Subject'),
+      '#default_value' => $mail_config->get('register_no_approval_required.subject'),
+      '#maxlength' => 180,
+    );
+    $form['email_no_approval_required']['user_mail_register_no_approval_required_body'] = array(
+      '#type' => 'textarea',
+      '#title' => t('Body'),
+      '#default_value' => $mail_config->get('register_no_approval_required.body'),
+      '#rows' => 15,
+    );
+
+    $form['email_password_reset'] = array(
+      '#type' => 'details',
+      '#title' => t('Password recovery'),
+      '#collapsed' => TRUE,
+      '#description' => t('Edit the e-mail messages sent to users who request a new password.') . ' ' . $email_token_help,
+      '#group' => 'email',
+      '#weight' => 10,
+    );
+    $form['email_password_reset']['user_mail_password_reset_subject'] = array(
+      '#type' => 'textfield',
+      '#title' => t('Subject'),
+      '#default_value' => $mail_config->get('password_reset.subject'),
+      '#maxlength' => 180,
+    );
+    $form['email_password_reset']['user_mail_password_reset_body'] = array(
+      '#type' => 'textarea',
+      '#title' => t('Body'),
+      '#default_value' => $mail_config->get('password_reset.body'),
+      '#rows' => 12,
+    );
+
+    $form['email_activated'] = array(
+      '#type' => 'details',
+      '#title' => t('Account activation'),
+      '#collapsed' => TRUE,
+      '#description' => t('Enable and edit e-mail messages sent to users upon account activation (when an administrator activates an account of a user who has already registered, on a site where administrative approval is required).') . ' ' . $email_token_help,
+      '#group' => 'email',
+    );
+    $form['email_activated']['user_mail_status_activated_notify'] = array(
+      '#type' => 'checkbox',
+      '#title' => t('Notify user when account is activated.'),
+      '#default_value' => $config->get('notify.status_activated'),
+    );
+    $form['email_activated']['settings'] = array(
+      '#type' => 'container',
+      '#states' => array(
+        // Hide the additional settings when this email is disabled.
+        'invisible' => array(
+          'input[name="user_mail_status_activated_notify"]' => array('checked' => FALSE),
+        ),
+      ),
+    );
+    $form['email_activated']['settings']['user_mail_status_activated_subject'] = array(
+      '#type' => 'textfield',
+      '#title' => t('Subject'),
+      '#default_value' => $mail_config->get('status_activated.subject'),
+      '#maxlength' => 180,
+    );
+    $form['email_activated']['settings']['user_mail_status_activated_body'] = array(
+      '#type' => 'textarea',
+      '#title' => t('Body'),
+      '#default_value' => $mail_config->get('status_activated.body'),
+      '#rows' => 15,
+    );
+
+    $form['email_blocked'] = array(
+      '#type' => 'details',
+      '#title' => t('Account blocked'),
+      '#collapsed' => TRUE,
+      '#description' => t('Enable and edit e-mail messages sent to users when their accounts are blocked.') . ' ' . $email_token_help,
+      '#group' => 'email',
+    );
+    $form['email_blocked']['user_mail_status_blocked_notify'] = array(
+      '#type' => 'checkbox',
+      '#title' => t('Notify user when account is blocked.'),
+      '#default_value' => $config->get('notify.status_blocked'),
+    );
+    $form['email_blocked']['settings'] = array(
+      '#type' => 'container',
+      '#states' => array(
+        // Hide the additional settings when the blocked email is disabled.
+        'invisible' => array(
+          'input[name="user_mail_status_blocked_notify"]' => array('checked' => FALSE),
+        ),
+      ),
+    );
+    $form['email_blocked']['settings']['user_mail_status_blocked_subject'] = array(
+      '#type' => 'textfield',
+      '#title' => t('Subject'),
+      '#default_value' => $mail_config->get('status_blocked.subject'),
+      '#maxlength' => 180,
+    );
+    $form['email_blocked']['settings']['user_mail_status_blocked_body'] = array(
+      '#type' => 'textarea',
+      '#title' => t('Body'),
+      '#default_value' => $mail_config->get('status_blocked.body'),
+      '#rows' => 3,
+    );
+
+    $form['email_cancel_confirm'] = array(
+      '#type' => 'details',
+      '#title' => t('Account cancellation confirmation'),
+      '#collapsed' => TRUE,
+      '#description' => t('Edit the e-mail messages sent to users when they attempt to cancel their accounts.') . ' ' . $email_token_help,
+      '#group' => 'email',
+    );
+    $form['email_cancel_confirm']['user_mail_cancel_confirm_subject'] = array(
+      '#type' => 'textfield',
+      '#title' => t('Subject'),
+      '#default_value' => $mail_config->get('cancel_confirm.subject'),
+      '#maxlength' => 180,
+    );
+    $form['email_cancel_confirm']['user_mail_cancel_confirm_body'] = array(
+      '#type' => 'textarea',
+      '#title' => t('Body'),
+      '#default_value' => $mail_config->get('cancel_confirm.body'),
+      '#rows' => 3,
+    );
+
+    $form['email_canceled'] = array(
+      '#type' => 'details',
+      '#title' => t('Account canceled'),
+      '#collapsed' => TRUE,
+      '#description' => t('Enable and edit e-mail messages sent to users when their accounts are canceled.') . ' ' . $email_token_help,
+      '#group' => 'email',
+    );
+    $form['email_canceled']['user_mail_status_canceled_notify'] = array(
+      '#type' => 'checkbox',
+      '#title' => t('Notify user when account is canceled.'),
+      '#default_value' => $config->get('notify.status_canceled'),
+    );
+    $form['email_canceled']['settings'] = array(
+      '#type' => 'container',
+      '#states' => array(
+        // Hide the settings when the cancel notify checkbox is disabled.
+        'invisible' => array(
+          'input[name="user_mail_status_canceled_notify"]' => array('checked' => FALSE),
+        ),
+      ),
+    );
+    $form['email_canceled']['settings']['user_mail_status_canceled_subject'] = array(
+      '#type' => 'textfield',
+      '#title' => t('Subject'),
+      '#default_value' => $mail_config->get('status_canceled.subject'),
+      '#maxlength' => 180,
+    );
+    $form['email_canceled']['settings']['user_mail_status_canceled_body'] = array(
+      '#type' => 'textarea',
+      '#title' => t('Body'),
+      '#default_value' => $mail_config->get('status_canceled.body'),
+      '#rows' => 3,
+    );
+
+    return parent::buildForm($form, $form_state);
+  }
+
+  /**
+   * Implements \Drupal\Core\Form\FormInterface::submitForm().
+   */
+  public function submitForm(array &$form, array &$form_state) {
+    parent::submitForm($form, $form_state);
+
+    $this->configFactory->get('user.settings')
+      ->set('anonymous', $form_state['values']['anonymous'])
+      ->set('admin_role', $form_state['values']['user_admin_role'])
+      ->set('register', $form_state['values']['user_register'])
+      ->set('password_strength', $form_state['values']['user_password_strength'])
+      ->set('verify_mail', $form_state['values']['user_email_verification'])
+      ->set('signatures', $form_state['values']['user_signatures'])
+      ->set('cancel_method', $form_state['values']['user_cancel_method'])
+      ->set('notify.status_activated', $form_state['values']['user_mail_status_activated_notify'])
+      ->set('notify.status_blocked', $form_state['values']['user_mail_status_blocked_notify'])
+      ->set('notify.status_canceled', $form_state['values']['user_mail_status_canceled_notify'])
+      ->save();
+    $this->configFactory->get('user.mail')
+      ->set('cancel_confirm.body', $form_state['values']['user_mail_cancel_confirm_body'])
+      ->set('cancel_confirm.subject', $form_state['values']['user_mail_cancel_confirm_subject'])
+      ->set('password_reset.body', $form_state['values']['user_mail_password_reset_body'])
+      ->set('password_reset.subject', $form_state['values']['user_mail_password_reset_subject'])
+      ->set('register_admin_created.body', $form_state['values']['user_mail_register_admin_created_body'])
+      ->set('register_admin_created.subject', $form_state['values']['user_mail_register_admin_created_subject'])
+      ->set('register_no_approval_required.body', $form_state['values']['user_mail_register_no_approval_required_body'])
+      ->set('register_no_approval_required.subject', $form_state['values']['user_mail_register_no_approval_required_subject'])
+      ->set('register_pending_approval.body', $form_state['values']['user_mail_register_pending_approval_body'])
+      ->set('register_pending_approval.subject', $form_state['values']['user_mail_register_pending_approval_subject'])
+      ->set('status_activated.body', $form_state['values']['user_mail_status_activated_body'])
+      ->set('status_activated.subject', $form_state['values']['user_mail_status_activated_subject'])
+      ->set('status_blocked.body', $form_state['values']['user_mail_status_blocked_body'])
+      ->set('status_blocked.subject', $form_state['values']['user_mail_status_blocked_subject'])
+      ->set('status_canceled.body', $form_state['values']['user_mail_status_canceled_body'])
+      ->set('status_canceled.subject', $form_state['values']['user_mail_status_canceled_subject'])
+      ->save();
+    $this->configFactory->get('system.site')
+      ->set('mail_notification', $form_state['values']['mail_notification_address'])
+      ->save();
+  }
+
+}
diff --git a/core/modules/user/lib/Drupal/user/Tests/UserAdminSettingsFormTest.php b/core/modules/user/lib/Drupal/user/Tests/UserAdminSettingsFormTest.php
index 28558e6..a340353 100644
--- a/core/modules/user/lib/Drupal/user/Tests/UserAdminSettingsFormTest.php
+++ b/core/modules/user/lib/Drupal/user/Tests/UserAdminSettingsFormTest.php
@@ -8,6 +8,7 @@
 namespace Drupal\user\Tests;
 
 use Drupal\system\Tests\System\SystemConfigFormTestBase;
+use Drupal\user\AccountSettingsForm;
 
 class UserAdminSettingsFormTest extends SystemConfigFormTestBase {
 
@@ -21,8 +22,8 @@ public static function getInfo() {
 
   public function setUp() {
     parent::setUp();
-    module_load_include('admin.inc', 'user');
-    $this->form_id = 'user_admin_settings';
+
+    $this->form = AccountSettingsForm::create($this->container);
     $this->values = array(
       'anonymous' => array(
         '#value' => $this->randomString(10),
diff --git a/core/modules/user/user.admin.inc b/core/modules/user/user.admin.inc
index c3931d8..a04ea36 100644
--- a/core/modules/user/user.admin.inc
+++ b/core/modules/user/user.admin.inc
@@ -286,396 +286,6 @@ function user_admin_account_validate($form, &$form_state) {
 }
 
 /**
- * Form builder; Configure user settings for this site.
- *
- * @ingroup forms
- * @see user_admin_settings_submit()
- */
-function user_admin_settings($form, &$form_state) {
-  config_context_enter('config.context.free');
-  $config = config('user.settings');
-  $mail_config = config('user.mail');
-
-  // Settings for anonymous users.
-  $form['anonymous_settings'] = array(
-    '#type' => 'details',
-    '#title' => t('Anonymous users'),
-  );
-  $form['anonymous_settings']['anonymous'] = array(
-    '#type' => 'textfield',
-    '#title' => t('Name'),
-    '#default_value' => $config->get('anonymous'),
-    '#description' => t('The name used to indicate anonymous users.'),
-    '#required' => TRUE,
-  );
-
-  // Administrative role option.
-  $form['admin_role'] = array(
-    '#type' => 'details',
-    '#title' => t('Administrator role'),
-  );
-  // Do not allow users to set the anonymous or authenticated user roles as the
-  // administrator role.
-  $roles = user_role_names(TRUE);
-  unset($roles[DRUPAL_AUTHENTICATED_RID]);
-  $form['admin_role']['user_admin_role'] = array(
-    '#type' => 'select',
-    '#title' => t('Administrator role'),
-    '#empty_value' => '',
-    '#default_value' => $config->get('admin_role'),
-    '#options' => $roles,
-    '#description' => t('This role will be automatically assigned new permissions whenever a module is enabled. Changing this setting will not affect existing permissions.'),
-  );
-
-  // @todo Remove this check once language settings are generalized.
-  if (module_exists('translation_entity')) {
-    $form['language'] = array(
-      '#type' => 'details',
-      '#title' => t('Language settings'),
-      '#tree' => TRUE,
-    );
-    $form_state['translation_entity']['key'] = 'language';
-    $form['language'] += translation_entity_enable_widget('user', 'user', $form, $form_state);
-  }
-
-  // User registration settings.
-  $form['registration_cancellation'] = array(
-    '#type' => 'details',
-    '#title' => t('Registration and cancellation'),
-  );
-  $form['registration_cancellation']['user_register'] = array(
-    '#type' => 'radios',
-    '#title' => t('Who can register accounts?'),
-    '#default_value' => $config->get('register'),
-    '#options' => array(
-      USER_REGISTER_ADMINISTRATORS_ONLY => t('Administrators only'),
-      USER_REGISTER_VISITORS => t('Visitors'),
-      USER_REGISTER_VISITORS_ADMINISTRATIVE_APPROVAL => t('Visitors, but administrator approval is required'),
-    )
-  );
-  $form['registration_cancellation']['user_email_verification'] = array(
-    '#type' => 'checkbox',
-    '#title' => t('Require e-mail verification when a visitor creates an account.'),
-    '#default_value' => $config->get('verify_mail'),
-    '#description' => t('New users will be required to validate their e-mail address prior to logging into the site, and will be assigned a system-generated password. With this setting disabled, users will be logged in immediately upon registering, and may select their own passwords during registration.')
-  );
-  $form['registration_cancellation']['user_password_strength'] = array(
-    '#type' => 'checkbox',
-    '#title' => t('Enable password strength indicator'),
-    '#default_value' => $config->get('password_strength'),
-  );
-  form_load_include($form_state, 'inc', 'user', 'user.pages');
-  $form['registration_cancellation']['user_cancel_method'] = array(
-    '#type' => 'radios',
-    '#title' => t('When cancelling a user account'),
-    '#default_value' => $config->get('cancel_method'),
-    '#description' => t('Users with the %select-cancel-method or %administer-users <a href="@permissions-url">permissions</a> can override this default method.', array('%select-cancel-method' => t('Select method for cancelling account'), '%administer-users' => t('Administer users'), '@permissions-url' => url('admin/people/permissions'))),
-  );
-  $form['registration_cancellation']['user_cancel_method'] += user_cancel_methods();
-  foreach (element_children($form['registration_cancellation']['user_cancel_method']) as $key) {
-    // All account cancellation methods that specify #access cannot be
-    // configured as default method.
-    // @see hook_user_cancel_methods_alter()
-    if (isset($form['registration_cancellation']['user_cancel_method'][$key]['#access'])) {
-      $form['registration_cancellation']['user_cancel_method'][$key]['#access'] = FALSE;
-    }
-  }
-
-  // Account settings.
-  $form['personalization'] = array(
-    '#type' => 'details',
-    '#title' => t('Personalization'),
-  );
-  $form['personalization']['user_signatures'] = array(
-    '#type' => 'checkbox',
-    '#title' => t('Enable signatures.'),
-    '#default_value' => $config->get('signatures'),
-  );
-
-  // Default notifications address.
-  $form['mail_notification_address'] = array(
-    '#type' => 'email',
-    '#title' => t('Notification e-mail address'),
-    '#default_value' => config('system.site')->get('mail_notification'),
-    '#description' => t("The e-mail address to be used as the 'from' address for all account notifications listed below. If <em>'Visitors, but administrator approval is required'</em> is selected above, a notification email will also be sent to this address for any new registrations. Leave empty to use the default system e-mail address <em>(%site-email).</em>", array('%site-email' => config('system.site')->get('mail'))),
-    '#maxlength' => 180,
-  );
-
-  $form['email'] = array(
-    '#type' => 'vertical_tabs',
-    '#title' => t('E-mails'),
-  );
-  // These email tokens are shared for all settings, so just define
-  // the list once to help ensure they stay in sync.
-  $email_token_help = t('Available variables are: [site:name], [site:url], [user:name], [user:mail], [site:login-url], [site:url-brief], [user:edit-url], [user:one-time-login-url], [user:cancel-url].');
-
-  $form['email_admin_created'] = array(
-    '#type' => 'details',
-    '#title' => t('Welcome (new user created by administrator)'),
-    '#collapsed' => ($config->get('register') != USER_REGISTER_ADMINISTRATORS_ONLY),
-    '#description' => t('Edit the welcome e-mail messages sent to new member accounts created by an administrator.') . ' ' . $email_token_help,
-    '#group' => 'email',
-  );
-  $form['email_admin_created']['user_mail_register_admin_created_subject'] = array(
-    '#type' => 'textfield',
-    '#title' => t('Subject'),
-    '#default_value' => $mail_config->get('register_admin_created.subject'),
-    '#maxlength' => 180,
-  );
-  $form['email_admin_created']['user_mail_register_admin_created_body'] = array(
-    '#type' => 'textarea',
-    '#title' => t('Body'),
-    '#default_value' =>  $mail_config->get('register_admin_created.body'),
-    '#rows' => 15,
-  );
-
-  $form['email_pending_approval'] = array(
-    '#type' => 'details',
-    '#title' => t('Welcome (awaiting approval)'),
-    '#collapsed' => ($config->get('register') != USER_REGISTER_VISITORS_ADMINISTRATIVE_APPROVAL),
-    '#description' => t('Edit the welcome e-mail messages sent to new members upon registering, when administrative approval is required.') . ' ' . $email_token_help,
-    '#group' => 'email',
-  );
-  $form['email_pending_approval']['user_mail_register_pending_approval_subject'] = array(
-    '#type' => 'textfield',
-    '#title' => t('Subject'),
-    '#default_value' => $mail_config->get('register_pending_approval.subject'),
-    '#maxlength' => 180,
-  );
-  $form['email_pending_approval']['user_mail_register_pending_approval_body'] = array(
-    '#type' => 'textarea',
-    '#title' => t('Body'),
-    '#default_value' => $mail_config->get('register_pending_approval.body'),
-    '#rows' => 8,
-  );
-
-  $form['email_pending_approval_admin'] = array(
-    '#type' => 'details',
-    '#title' => t('Admin (user awaiting approval)'),
-    '#collapsed' => ($config->get('register') != USER_REGISTER_VISITORS_ADMINISTRATIVE_APPROVAL),
-    '#description' => t('Edit the e-mail notifying the site administrator that there are new members awaiting administrative approval.') . ' ' . $email_token_help,
-    '#group' => 'email',
-  );
-  $form['email_pending_approval_admin']['register_pending_approval_admin_subject'] = array(
-    '#type' => 'textfield',
-    '#title' => t('Subject'),
-    '#default_value' => $mail_config->get('register_pending_approval_admin.subject'),
-    '#maxlength' => 180,
-  );
-  $form['email_pending_approval_admin']['register_pending_approval_admin_body'] = array(
-    '#type' => 'textarea',
-    '#title' => t('Body'),
-    '#default_value' => $mail_config->get('register_pending_approval_admin.body'),
-    '#rows' => 8,
-  );
-
-  $form['email_no_approval_required'] = array(
-    '#type' => 'details',
-    '#title' => t('Welcome (no approval required)'),
-    '#collapsed' => ($config->get('register') != USER_REGISTER_VISITORS),
-    '#description' => t('Edit the welcome e-mail messages sent to new members upon registering, when no administrator approval is required.') . ' ' . $email_token_help,
-    '#group' => 'email',
-  );
-  $form['email_no_approval_required']['user_mail_register_no_approval_required_subject'] = array(
-    '#type' => 'textfield',
-    '#title' => t('Subject'),
-    '#default_value' => $mail_config->get('register_no_approval_required.subject'),
-    '#maxlength' => 180,
-  );
-  $form['email_no_approval_required']['user_mail_register_no_approval_required_body'] = array(
-    '#type' => 'textarea',
-    '#title' => t('Body'),
-    '#default_value' => $mail_config->get('register_no_approval_required.body'),
-    '#rows' => 15,
-  );
-
-  $form['email_password_reset'] = array(
-    '#type' => 'details',
-    '#title' => t('Password recovery'),
-    '#collapsed' => TRUE,
-    '#description' => t('Edit the e-mail messages sent to users who request a new password.') . ' ' . $email_token_help,
-    '#group' => 'email',
-    '#weight' => 10,
-  );
-  $form['email_password_reset']['user_mail_password_reset_subject'] = array(
-    '#type' => 'textfield',
-    '#title' => t('Subject'),
-    '#default_value' => $mail_config->get('password_reset.subject'),
-    '#maxlength' => 180,
-  );
-  $form['email_password_reset']['user_mail_password_reset_body'] = array(
-    '#type' => 'textarea',
-    '#title' => t('Body'),
-    '#default_value' => $mail_config->get('password_reset.body'),
-    '#rows' => 12,
-  );
-
-  $form['email_activated'] = array(
-    '#type' => 'details',
-    '#title' => t('Account activation'),
-    '#collapsed' => TRUE,
-    '#description' => t('Enable and edit e-mail messages sent to users upon account activation (when an administrator activates an account of a user who has already registered, on a site where administrative approval is required).') . ' ' . $email_token_help,
-    '#group' => 'email',
-  );
-  $form['email_activated']['user_mail_status_activated_notify'] = array(
-    '#type' => 'checkbox',
-    '#title' => t('Notify user when account is activated.'),
-    '#default_value' => $config->get('notify.status_activated'),
-  );
-  $form['email_activated']['settings'] = array(
-    '#type' => 'container',
-    '#states' => array(
-      // Hide the additional settings when this email is disabled.
-      'invisible' => array(
-        'input[name="user_mail_status_activated_notify"]' => array('checked' => FALSE),
-      ),
-    ),
-  );
-  $form['email_activated']['settings']['user_mail_status_activated_subject'] = array(
-    '#type' => 'textfield',
-    '#title' => t('Subject'),
-    '#default_value' => $mail_config->get('status_activated.subject'),
-    '#maxlength' => 180,
-  );
-  $form['email_activated']['settings']['user_mail_status_activated_body'] = array(
-    '#type' => 'textarea',
-    '#title' => t('Body'),
-    '#default_value' => $mail_config->get('status_activated.body'),
-    '#rows' => 15,
-  );
-
-  $form['email_blocked'] = array(
-    '#type' => 'details',
-    '#title' => t('Account blocked'),
-    '#collapsed' => TRUE,
-    '#description' => t('Enable and edit e-mail messages sent to users when their accounts are blocked.') . ' ' . $email_token_help,
-    '#group' => 'email',
-  );
-  $form['email_blocked']['user_mail_status_blocked_notify'] = array(
-    '#type' => 'checkbox',
-    '#title' => t('Notify user when account is blocked.'),
-    '#default_value' => $config->get('notify.status_blocked'),
-  );
-  $form['email_blocked']['settings'] = array(
-    '#type' => 'container',
-    '#states' => array(
-      // Hide the additional settings when the blocked email is disabled.
-      'invisible' => array(
-        'input[name="user_mail_status_blocked_notify"]' => array('checked' => FALSE),
-      ),
-    ),
-  );
-  $form['email_blocked']['settings']['user_mail_status_blocked_subject'] = array(
-    '#type' => 'textfield',
-    '#title' => t('Subject'),
-    '#default_value' => $mail_config->get('status_blocked.subject'),
-    '#maxlength' => 180,
-  );
-  $form['email_blocked']['settings']['user_mail_status_blocked_body'] = array(
-    '#type' => 'textarea',
-    '#title' => t('Body'),
-    '#default_value' => $mail_config->get('status_blocked.body'),
-    '#rows' => 3,
-  );
-
-  $form['email_cancel_confirm'] = array(
-    '#type' => 'details',
-    '#title' => t('Account cancellation confirmation'),
-    '#collapsed' => TRUE,
-    '#description' => t('Edit the e-mail messages sent to users when they attempt to cancel their accounts.') . ' ' . $email_token_help,
-    '#group' => 'email',
-  );
-  $form['email_cancel_confirm']['user_mail_cancel_confirm_subject'] = array(
-    '#type' => 'textfield',
-    '#title' => t('Subject'),
-    '#default_value' => $mail_config->get('cancel_confirm.subject'),
-    '#maxlength' => 180,
-  );
-  $form['email_cancel_confirm']['user_mail_cancel_confirm_body'] = array(
-    '#type' => 'textarea',
-    '#title' => t('Body'),
-    '#default_value' => $mail_config->get('cancel_confirm.body'),
-    '#rows' => 3,
-  );
-
-  $form['email_canceled'] = array(
-    '#type' => 'details',
-    '#title' => t('Account canceled'),
-    '#collapsed' => TRUE,
-    '#description' => t('Enable and edit e-mail messages sent to users when their accounts are canceled.') . ' ' . $email_token_help,
-    '#group' => 'email',
-  );
-  $form['email_canceled']['user_mail_status_canceled_notify'] = array(
-    '#type' => 'checkbox',
-    '#title' => t('Notify user when account is canceled.'),
-    '#default_value' => $config->get('notify.status_canceled'),
-  );
-  $form['email_canceled']['settings'] = array(
-    '#type' => 'container',
-    '#states' => array(
-      // Hide the settings when the cancel notify checkbox is disabled.
-      'invisible' => array(
-        'input[name="user_mail_status_canceled_notify"]' => array('checked' => FALSE),
-      ),
-    ),
-  );
-  $form['email_canceled']['settings']['user_mail_status_canceled_subject'] = array(
-    '#type' => 'textfield',
-    '#title' => t('Subject'),
-    '#default_value' => $mail_config->get('status_canceled.subject'),
-    '#maxlength' => 180,
-  );
-  $form['email_canceled']['settings']['user_mail_status_canceled_body'] = array(
-    '#type' => 'textarea',
-    '#title' => t('Body'),
-    '#default_value' => $mail_config->get('status_canceled.body'),
-    '#rows' => 3,
-  );
-
-  return system_config_form($form, $form_state);
-}
-
-/**
- * Form submission handler for user_admin_settings().
- */
-function user_admin_settings_submit($form, &$form_state) {
-  config_context_enter('config.context.free');
-  config('user.settings')
-    ->set('anonymous', $form_state['values']['anonymous'])
-    ->set('admin_role', $form_state['values']['user_admin_role'])
-    ->set('register', $form_state['values']['user_register'])
-    ->set('password_strength', $form_state['values']['user_password_strength'])
-    ->set('verify_mail', $form_state['values']['user_email_verification'])
-    ->set('signatures', $form_state['values']['user_signatures'])
-    ->set('cancel_method', $form_state['values']['user_cancel_method'])
-    ->set('notify.status_activated', $form_state['values']['user_mail_status_activated_notify'])
-    ->set('notify.status_blocked', $form_state['values']['user_mail_status_blocked_notify'])
-    ->set('notify.status_canceled', $form_state['values']['user_mail_status_canceled_notify'])
-    ->save();
-  config('user.mail')
-    ->set('cancel_confirm.body', $form_state['values']['user_mail_cancel_confirm_body'])
-    ->set('cancel_confirm.subject', $form_state['values']['user_mail_cancel_confirm_subject'])
-    ->set('password_reset.body', $form_state['values']['user_mail_password_reset_body'])
-    ->set('password_reset.subject', $form_state['values']['user_mail_password_reset_subject'])
-    ->set('register_admin_created.body', $form_state['values']['user_mail_register_admin_created_body'])
-    ->set('register_admin_created.subject', $form_state['values']['user_mail_register_admin_created_subject'])
-    ->set('register_no_approval_required.body', $form_state['values']['user_mail_register_no_approval_required_body'])
-    ->set('register_no_approval_required.subject', $form_state['values']['user_mail_register_no_approval_required_subject'])
-    ->set('register_pending_approval.body', $form_state['values']['user_mail_register_pending_approval_body'])
-    ->set('register_pending_approval.subject', $form_state['values']['user_mail_register_pending_approval_subject'])
-    ->set('status_activated.body', $form_state['values']['user_mail_status_activated_body'])
-    ->set('status_activated.subject', $form_state['values']['user_mail_status_activated_subject'])
-    ->set('status_blocked.body', $form_state['values']['user_mail_status_blocked_body'])
-    ->set('status_blocked.subject', $form_state['values']['user_mail_status_blocked_subject'])
-    ->set('status_canceled.body', $form_state['values']['user_mail_status_canceled_body'])
-    ->set('status_canceled.subject', $form_state['values']['user_mail_status_canceled_subject'])
-    ->save();
-  config('system.site')
-    ->set('mail_notification', $form_state['values']['mail_notification_address'])
-    ->save();
-}
-
-/**
  * Menu callback: administer permissions.
  *
  * @ingroup forms
diff --git a/core/modules/user/user.module b/core/modules/user/user.module
index bdf5862..6167c39 100644
--- a/core/modules/user/user.module
+++ b/core/modules/user/user.module
@@ -1002,11 +1002,8 @@ function user_menu() {
   $items['admin/config/people/accounts'] = array(
     'title' => 'Account settings',
     'description' => 'Configure default behavior of users, including registration requirements, e-mails, and fields.',
-    'page callback' => 'drupal_get_form',
-    'page arguments' => array('user_admin_settings'),
-    'access arguments' => array('administer users'),
-    'file' => 'user.admin.inc',
     'weight' => -10,
+    'route_name' => 'user_account_settings',
   );
   $items['admin/config/people/accounts/settings'] = array(
     'title' => 'Settings',
diff --git a/core/modules/user/user.routing.yml b/core/modules/user/user.routing.yml
index 34b6059..ae65d3a 100644
--- a/core/modules/user/user.routing.yml
+++ b/core/modules/user/user.routing.yml
@@ -18,3 +18,10 @@ user_autocomplete_anonymous:
     _controller: '\Drupal\user\UserAutocompleteController::autocompleteUserAnonymous'
   requirements:
     _permission: 'access user profiles'
+
+user_account_settings:
+  pattern: '/admin/config/people/accounts'
+  defaults:
+    _form: '\Drupal\user\AccountSettingsForm'
+  requirements:
+    _permission: 'administer users'