A visa is official permission to travel into another country and is documented in your passport. Visa requirements vary by destination. In some cases, no visa is required. In other cases, a visa may be obtained at the arrival airport. However, some countries require you to submit your passport and application paperwork to their embassy for approval prior to your arrival. Generally Team4Tech volunteers travel on business visas. The requirements for obtaining a visa vary widely depending on your home country and the destination country. Check the foreign embassy website of the destination country for specific requirements. It is important to start the visa process early and to follow the requirements carefully so you may obtain you visa before the trip. Team4Tech will provide guidance but it is your responsibility to apply, pay for and obtain any needed visas. Team4Tech will provide certain documentation when required, such as letters of invitation and letters of guarantee.