Labour Card & Residence Visa:
All the foreign workers require a residence visa and a ‘labour card’. To obtain these documents, workers must first undergo a medical examination. Non-westerners citizens generally require a more extensive examination than the westerners’ citizens. Then a residence visa is issued and eventually a labor card, which is a kind of worker’s identity card to be carried at all times, worker’s passport having been surrendered to their employer.
Dubai residence visas are valid for 3 years and are easy to renew. New residents should remain in the UAE for the first 6 months of their stay.
Read More at: http://www.visaworker.com/dubai-visa/