Due to variations in these requirements for travelers from different nations, this article will only address the procedures required for citizens of the United States. Visas can be obtained directly from national embassies or through tourist agencies serving these areas. Applications may be submitted by mail or in person. Different types of travel usually require different types of visas. The period of time allowed by a visa varies based on the request of the traveler.
Transit visas are only valid for the length of time required to travel through the country.
The following table lists the primary offices for visa processing of each nation. Most nations require a visa application form, supplied by mail or fax upon request. Larger nations may operate offices in several large cities. Call the primary office listed for details. In addition, most countries require a letter of invitation or copy of hotel vouchers.