Nonimmigrant visa issuance fees are based on the principle of reciprocity, and vary for applicants from different countries and by visa classification. Visa issuance fees correspond to the total of similar visa fees charged to U.S. citizens by a particular country. If the amount charged to U.S. citizens exceeds the U.S. visa application fee, also known as the MRV fee, then a visa issuance fee is charged.