Visa rules and requirements can and do change suddenly, and without warning. The UAE embassy in your country or the relevant authority in the UAE (DNRD in Dubai) is probably the only source of information you can rely on – even government websites can be slow to update. This page was last updated on 27-Jan-2012 but information here may not be complete or accurate. The validity period of the free visit visa on arrival seems to change irregularly – 30 days when new visa rules started 29 July 2008, up to 60 days sometime in August, back to 30 days in January 2009. Add a comment to the Dubai visit visa period topic.