Visit the U.S. Department of State's website. Select the "International Travel" tab from the top of the homepage.
Select the country that will be visited from the pull-down menu in the center of the page. Only certain countries require an exit visa. A majority of countries in Europe and North America do not have such requirements.
Select the "Entry/Exit Requirements" option from the list provided. This will provide all information related to entry and exit visas for a particular country. In general, the same visa will be used to enter and exit the country.
Research the requirements for obtaining an entry/exit visa. Every visitor must have a valid visa issued from the country being visited. Some countries, such as Russia, require an invitation to visit as well as a visa sponsor.