i believe you can search that here, there is search button on top of the page. just try to look US driving license. hope that help.

also for US, you can drive for 1 month free after your arrival. after that go to traffic police once you get your Residence Permit of Qatar, it will take only few minutues they will issue you with Qatar Driving License. There are some fee which i dont know how much but i believe less then USD 50.

Everybody is right everybody is wrong it depends where you stand.