diff --git a/core/modules/locale/config/locale.languages.yml b/core/modules/locale/config/locale.languages.yml
new file mode 100644
index 0000000..8a4e564
--- /dev/null
+++ b/core/modules/locale/config/locale.languages.yml
@@ -0,0 +1 @@
+en: '0'
\ No newline at end of file
diff --git a/core/modules/locale/lib/Drupal/locale/LocaleTranslation.php b/core/modules/locale/lib/Drupal/locale/LocaleTranslation.php
index ac2b630..54cc60d 100644
--- a/core/modules/locale/lib/Drupal/locale/LocaleTranslation.php
+++ b/core/modules/locale/lib/Drupal/locale/LocaleTranslation.php
@@ -8,6 +8,7 @@
 namespace Drupal\locale;
 
 use Drupal\Core\Cache\CacheBackendInterface;
+use Drupal\Core\Config\ConfigFactory;
 use Drupal\Core\DestructableInterface;
 use Drupal\Core\Language\Language;
 use Drupal\Core\Lock\LockBackendAbstract;
@@ -32,6 +33,13 @@ class LocaleTranslation implements TranslatorInterface, DestructableInterface {
   protected $storage;
 
   /**
+   * The configuration factory.
+   *
+   * @var \Drupal\Core\Config\ConfigFactory
+   */
+  protected $configFactory;
+
+  /**
    * Cached translations
    *
    * @var array
@@ -63,11 +71,14 @@ class LocaleTranslation implements TranslatorInterface, DestructableInterface {
    *   The cache backend.
    * @param \Drupal\Core\Lock\LockBackendInterface $lock
    *   The lock backend.
+   * @param \Drupal\Core\Config\ConfigFactory $config_factory
+   *   The config factory.
    */
-  public function __construct(StringStorageInterface $storage, CacheBackendInterface $cache, LockBackendInterface $lock) {
+  public function __construct(StringStorageInterface $storage, CacheBackendInterface $cache, LockBackendInterface $lock, ConfigFactory $config_factory) {
     $this->storage = $storage;
     $this->cache = $cache;
     $this->lock = $lock;
+    $this->configFactory = $config_factory;
   }
 
   /**
@@ -75,7 +86,7 @@ public function __construct(StringStorageInterface $storage, CacheBackendInterfa
    */
   public function getStringTranslation($langcode, $string, $context) {
     // If the language is not suitable for locale module, just return.
-    if ($langcode == Language::LANGCODE_SYSTEM || ($langcode == 'en' && !variable_get('locale_translate_english', FALSE))) {
+    if (!$this->configFactory->get('locale.languages')->get($langcode)) {
       return FALSE;
     }
     // Strings are cached by langcode, context and roles, using instances of the
diff --git a/core/modules/locale/locale.bulk.inc b/core/modules/locale/locale.bulk.inc
index 8a15656..8a35c14 100644
--- a/core/modules/locale/locale.bulk.inc
+++ b/core/modules/locale/locale.bulk.inc
@@ -26,7 +26,7 @@ function locale_translate_import_form($form, &$form_state) {
   // are to translate Drupal to English as well.
   $existing_languages = array();
   foreach ($languages as $langcode => $language) {
-    if ($langcode != 'en' || locale_translate_english()) {
+    if (config('locale.languages')->get($langcode)) {
       $existing_languages[$langcode] = $language->name;
     }
   }
@@ -149,7 +149,7 @@ function locale_translate_export_form($form, &$form_state) {
   $languages = language_list();
   $language_options = array();
   foreach ($languages as $langcode => $language) {
-    if ($langcode != 'en' || locale_translate_english()) {
+    if (config('locale.languages')->get($langcode)) {
       $language_options[$langcode] = $language->name;
     }
   }
diff --git a/core/modules/locale/locale.install b/core/modules/locale/locale.install
index b781421..db86fce 100644
--- a/core/modules/locale/locale.install
+++ b/core/modules/locale/locale.install
@@ -20,6 +20,31 @@ function locale_install() {
 }
 
 /**
+ * Implements hook_enable().
+ */
+function locale_enable() {
+  // Update translatable language list.
+  $language_list = language_list();
+  $config = config('locale.languages');
+  $current = $config->get();
+  // Remove deleted languages.
+  foreach (array_keys($current) as $langcode) {
+    if (!isset($language_list[$langcode])) {
+      $config->clear($langcode);
+    }
+    else {
+      unset($language_list[$langcode]);
+    }
+  }
+  // Add setting for remaining languages in the list.
+  foreach (array_keys($language_list) as $langcode) {
+    // All languages translatable by default but English.
+    $config->set($langcode, (int)($langcode != 'en'));
+  }
+  $config->save();
+}
+
+/**
  * Implements hook_uninstall().
  */
 function locale_uninstall() {
diff --git a/core/modules/locale/locale.module b/core/modules/locale/locale.module
index 932b2a1..279330a 100644
--- a/core/modules/locale/locale.module
+++ b/core/modules/locale/locale.module
@@ -272,6 +272,8 @@ function locale_stream_wrappers() {
  * Implements hook_language_insert().
  */
 function locale_language_insert($language) {
+  // All new languages will be translatable by default.
+  config('locale.languages')->set($language->id, 1)->save();
   // @todo move these two cache clears out. See http://drupal.org/node/1293252
   // Changing the language settings impacts the interface.
   cache('page')->deleteAll();
@@ -311,6 +313,9 @@ function locale_language_delete($language) {
   // Clear locale translation caches.
   locale_translation_status_delete_languages(array($language->id));
   cache()->delete('locale:' . $language->id);
+
+  // Delete from list of translatable languages.
+  config('locale.languages')->clear($language->id)->save();
 }
 
 /**
@@ -322,8 +327,10 @@ function locale_language_delete($language) {
  */
 function locale_translatable_language_list() {
   $languages = language_list();
-  if (!locale_translate_english()) {
-    unset($languages['en']);
+  foreach (array_keys($languages) as $langcode) {
+    if (!config('locale.languages')->get($langcode)) {
+      unset($languages[$langcode]);
+    }
   }
   return $languages;
 }
@@ -736,7 +743,7 @@ function locale_form_language_admin_overview_form_alter(&$form, &$form_state) {
       'translated' => 0,
       'ratio' => 0,
     );
-    if (!$language->locked && ($langcode != 'en' || locale_translate_english())) {
+    if (!$language->locked && (config('locale.languages')->get($langcode))) {
       $form['languages'][$langcode]['locale_statistics'] = array(
         '#markup' => l(
           t('@translated/@total (@ratio%)', array(
@@ -806,7 +813,7 @@ function locale_form_language_admin_edit_form_alter(&$form, &$form_state) {
     $form['locale_translate_english'] = array(
       '#title' => t('Enable interface translation to English'),
       '#type' => 'checkbox',
-      '#default_value' => locale_translate_english(),
+      '#default_value' => config('locale.languages')->get('en'),
     );
     $form['#submit'][] = 'locale_form_language_admin_edit_form_alter_submit';
   }
@@ -816,17 +823,7 @@ function locale_form_language_admin_edit_form_alter(&$form, &$form_state) {
  * Form submission handler for language_admin_edit_form().
  */
 function locale_form_language_admin_edit_form_alter_submit($form, $form_state) {
-  variable_set('locale_translate_english', $form_state['values']['locale_translate_english']);
-}
-
-/**
- * Checks whether locale translates to English.
- *
- * @return bool
- *   Returns TRUE if content should be translated to English, FALSE otherwise.
- */
-function locale_translate_english() {
-  return variable_get('locale_translate_english', FALSE);
+  Drupal::config('locale.languages')->set('en', intval($form_state['values']['locale_translate_english']))->save();
 }
 
 /**
diff --git a/core/modules/locale/locale.pages.inc b/core/modules/locale/locale.pages.inc
index 83777b6..2ed7a74 100644
--- a/core/modules/locale/locale.pages.inc
+++ b/core/modules/locale/locale.pages.inc
@@ -103,7 +103,7 @@ function locale_translate_filters() {
   $languages = language_list();
   $language_options = array();
   foreach ($languages as $langcode => $language) {
-    if ($langcode != 'en' || locale_translate_english()) {
+    if (config('locale.languages')->get($langcode)) {
       $language_options[$langcode] = $language->name;
     }
   }
diff --git a/core/modules/locale/locale.services.yml b/core/modules/locale/locale.services.yml
index f632704..776cb3b 100644
--- a/core/modules/locale/locale.services.yml
+++ b/core/modules/locale/locale.services.yml
@@ -12,7 +12,7 @@ services:
     arguments: ['@database']
   string_translator.locale.lookup:
     class: Drupal\locale\LocaleTranslation
-    arguments: ['@locale.storage', '@cache.cache', '@lock']
+    arguments: ['@locale.storage', '@cache.cache', '@lock', '@config.factory']
     tags:
       - { name: string_translator }
       - { name: needs_destruction }
diff --git a/core/modules/locale/tests/Drupal/locale/Tests/LocaleTranslationTest.php b/core/modules/locale/tests/Drupal/locale/Tests/LocaleTranslationTest.php
index f66024e..602ccdd 100644
--- a/core/modules/locale/tests/Drupal/locale/Tests/LocaleTranslationTest.php
+++ b/core/modules/locale/tests/Drupal/locale/Tests/LocaleTranslationTest.php
@@ -46,7 +46,7 @@ protected function setUp() {
    * Tests for \Drupal\locale\LocaleTranslation::destruct()
    */
   public function testDestruct() {
-    $translation = new LocaleTranslation($this->storage, $this->cache, $this->lock);
+    $translation = new LocaleTranslation($this->storage, $this->cache, $this->lock, $this->getConfigFactoryStub(array()));
     // Prove that destruction works without errors when translations are empty.
     $this->assertAttributeEmpty('translations', $translation);
     $translation->destruct();
diff --git a/core/tests/Drupal/Tests/UnitTestCase.php b/core/tests/Drupal/Tests/UnitTestCase.php
index 727976f..4fc3886 100644
--- a/core/tests/Drupal/Tests/UnitTestCase.php
+++ b/core/tests/Drupal/Tests/UnitTestCase.php
@@ -58,12 +58,12 @@ public function randomName($length = 8) {
    * @param array $configs
    *   An associative array of configuration settings whose keys are configuration
    *   object names and whose values are key => value arrays for the configuration
-   *   object in question.
+   *   object in question. Defaults to an empty array.
    *
    * @return \PHPUnit_Framework_MockObject_MockBuilder
    *   A MockBuilder object for the ConfigFactory with the desired return values.
    */
-  public function getConfigFactoryStub($configs) {
+  public function getConfigFactoryStub(array $configs = array()) {
     $config_map = array();
     // Construct the desired configuration object stubs, each with its own
     // desired return map.