diff --git a/library/Exceptions/SubdivisionCode/AsSubdivisionCodeException.php b/library/Exceptions/SubdivisionCode/AsSubdivisionCodeException.php
new file mode 100644
index 00000000..81b5b91a
--- /dev/null
+++ b/library/Exceptions/SubdivisionCode/AsSubdivisionCodeException.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 American Samoa subdivision code.
+ *
+ * ISO 3166-1 alpha-2: AS
+ */
+class AsSubdivisionCodeException extends SubdivisionCodeException
+{
+    public static $defaultTemplates = array(
+        self::MODE_DEFAULT => array(
+            self::STANDARD => '{{name}} must be a subdivision code of American Samoa',
+        ),
+        self::MODE_NEGATIVE => array(
+            self::STANDARD => '{{name}} must not be a subdivision code of American Samoa',
+        ),
+    );
+}
diff --git a/library/Rules/SubdivisionCode/AsSubdivisionCode.php b/library/Rules/SubdivisionCode/AsSubdivisionCode.php
new file mode 100644
index 00000000..7bbf5f92
--- /dev/null
+++ b/library/Rules/SubdivisionCode/AsSubdivisionCode.php
@@ -0,0 +1,34 @@
+<?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 American Samoa subdivision code.
+ *
+ * ISO 3166-1 alpha-2: AS
+ *
+ * @link http://www.geonames.org/AS/administrative-division-american-samoa.html
+ */
+class AsSubdivisionCode extends AbstractSearcher
+{
+    public $haystack = array(
+        'E', // Eastern
+        'M', // Manu'a
+        'R', // Rose Island
+        'S', // Swains Island
+        'W', // Western
+    );
+
+    public $compareIdentical = true;
+}