An IDP is only valid for 15 days for Visitors and Tourists. It may differ for residents, who normally need a Qatari driving license, but you need to check the laws daily. If you don't have a valid license, the minimum one month imprisonment may be a problem for your employer.

Here's how a Gulf Times reporter interpreted last month's version of the law.

http://www.gulf-times.com/site/topics/article.asp?cu_no=2&item_no=189106...