diff --git a/library/Exceptions/SubdivisionCode/BnSubdivisionCodeException.php b/library/Exceptions/SubdivisionCode/BnSubdivisionCodeException.php
new file mode 100644
index 00000000..3bb05532
--- /dev/null
+++ b/library/Exceptions/SubdivisionCode/BnSubdivisionCodeException.php
@@ -0,0 +1,31 @@
+<?php
+
+/*
+ * This file is part of Respect/Validation.
+ *
+ * (c) Alexandre Gomes Gaigalas <alexandre@gaigalas.net>
+ *
+ * For the full copyright and license information, please view the "LICENSE.md"
+ * file that was distributed with this source code.
+ */
+
+namespace Respect\Validation\Exceptions\SubdivisionCode;
+
+use Respect\Validation\Exceptions\SubdivisionCodeException;
+
+/**
+ * Exception class for Brunei subdivision code.
+ *
+ * ISO 3166-1 alpha-2: BN
+ */
+class BnSubdivisionCodeException extends SubdivisionCodeException
+{
+    public static $defaultTemplates = array(
+        self::MODE_DEFAULT => array(
+            self::STANDARD => '{{name}} must be a subdivision code of Brunei',
+        ),
+        self::MODE_NEGATIVE => array(
+            self::STANDARD => '{{name}} must not be a subdivision code of Brunei',
+        ),
+    );
+}
diff --git a/library/Rules/SubdivisionCode/BnSubdivisionCode.php b/library/Rules/SubdivisionCode/BnSubdivisionCode.php
new file mode 100644
index 00000000..ae792bfe
--- /dev/null
+++ b/library/Rules/SubdivisionCode/BnSubdivisionCode.php
@@ -0,0 +1,33 @@
+<?php
+
+/*
+ * This file is part of Respect/Validation.
+ *
+ * (c) Alexandre Gomes Gaigalas <alexandre@gaigalas.net>
+ *
+ * For the full copyright and license information, please view the "LICENSE.md"
+ * file that was distributed with this source code.
+ */
+
+namespace Respect\Validation\Rules\SubdivisionCode;
+
+use Respect\Validation\Rules\AbstractSearcher;
+
+/**
+ * Validator for Brunei subdivision code.
+ *
+ * ISO 3166-1 alpha-2: BN
+ *
+ * @link http://www.geonames.org/BN/administrative-division-brunei.html
+ */
+class BnSubdivisionCode extends AbstractSearcher
+{
+    public $haystack = array(
+        'BE', // Belait
+        'BM', // Brunei and Muara
+        'TE', // Temburong
+        'TU', // Tutong
+    );
+
+    public $compareIdentical = true;
+}