R-1 is a designation for a type of visa in the United States, specifically for non-immigrant religious workers. This visa allows individuals to enter the U.S. to perform religious duties for a recognized religious organization. Applicants must demonstrate their membership in a religious denomination and their intent to work in a religious capacity. The R-1 visa is typically granted for an initial period of up to 30 months, with the possibility of extension. It is designed to support the needs of religious organizations, such as churches, temples, and mosques, by allowing them to bring in qualified religious personnel from abroad.