diff --git a/library/Exceptions/SubdivisionCode/CkSubdivisionCodeException.php b/library/Exceptions/SubdivisionCode/CkSubdivisionCodeException.php
new file mode 100644
index 00000000..31114614
--- /dev/null
+++ b/library/Exceptions/SubdivisionCode/CkSubdivisionCodeException.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 Cook Islands subdivision code.
+ *
+ * ISO 3166-1 alpha-2: CK
+ */
+class CkSubdivisionCodeException extends SubdivisionCodeException
+{
+    public static $defaultTemplates = array(
+        self::MODE_DEFAULT => array(
+            self::STANDARD => '{{name}} must be a subdivision code of Cook Islands',
+        ),
+        self::MODE_NEGATIVE => array(
+            self::STANDARD => '{{name}} must not be a subdivision code of Cook Islands',
+        ),
+    );
+}
diff --git a/library/Rules/SubdivisionCode/CkSubdivisionCode.php b/library/Rules/SubdivisionCode/CkSubdivisionCode.php
new file mode 100644
index 00000000..2dc2c64d
--- /dev/null
+++ b/library/Rules/SubdivisionCode/CkSubdivisionCode.php
@@ -0,0 +1,44 @@
+<?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 Cook Islands subdivision code.
+ *
+ * ISO 3166-1 alpha-2: CK
+ *
+ * @link http://www.geonames.org/CK/administrative-division-cook-islands.html
+ */
+class CkSubdivisionCode extends AbstractSearcher
+{
+    public $haystack = array(
+        'AI', // Aitutaki
+        'AT', // Atiu
+        'MA', // Manuae
+        'MG', // Mangaia
+        'MK', // Manihiki
+        'MT', // Mitiaro
+        'MU', // Mauke
+        'NI', // Nassau Island
+        'PA', // Palmerston
+        'PE', // Penrhyn
+        'PU', // Pukapuka
+        'RK', // Rakahanga
+        'RR', // Rarotonga
+        'SU', // Surwarrow
+        'TA', // Takutea
+    );
+
+    public $compareIdentical = true;
+}