You are planning to go from Dubai, just ask somebody there he will guide you. It is very hard for residents of Qatar as most of them have not yet seen UAE. Like s_isale asked if it is not the same country? Yes it is the same country but they have 7 states and Abu Dhabi is the Capital. Each state have their own rules, immigration, visas, vehicle registration. But the good things is that you are allowed to visit anywhere with the same visa and all other documents like Driving License etc from any state in UAE.