diff --git a/src/Validator.php b/src/Validator.php
index d42636e..0afe7f2 100644
--- a/src/Validator.php
+++ b/src/Validator.php
@@ -44,7 +44,7 @@ class Validator
         'LV' => '\d{11}',
         'MT' => '\d{8}',
         'NL' => '\d{9}B\d{2}',
-        'NO' => '\d{9}',
+        'NO' => '\d{9}(MVA){0,1}',
         'PL' => '\d{10}',
         'PT' => '\d{9}',
         'RO' => '\d{2,10}',
diff --git a/tests/ValidatorTest.php b/tests/ValidatorTest.php
index abfe133..e455e5d 100644
--- a/tests/ValidatorTest.php
+++ b/tests/ValidatorTest.php
@@ -89,6 +89,7 @@ public function getValidVatins()
             array('IE1234567FA'),           // Ireland (since January 2013)
             array('NL999999999B99'),        // The Netherlands
             array('NO999999999'),           // Norway
+            array('NO999999999MVA'),        // Norway (including MVA)
             array('ES99999999R'),           // Spain
             array('SE999999999901'),        // Sweden
             array('CHE-123.456.788 TVA'),   // Switzerland