A visit visa is valid for 60 days, renewable once up to a total of 90 days. You can expect it to take one week to 10 days for a visit visa to be issued. An express service exists. These are issued for 15 days only and cannot be extended or renewed. You must have a UAE company who sponsors your visit.
Larger hotels can sponsor transit visas for tourists and business visits.
Formalities are normally handled by the company of employment. A medical, including blood test and chest x-ray, is required for adults before the visa process starts. These are taken at the Public Health Clinic in Nasseriya. Anyone who works in the Emirates must have a valid labor card issued by their employer. It is usual for the employer to hold an employee's passport or labor card.