Family reunions, admitting immigrants with talents that are advantageous to the American economy, protecting refugees, and fostering diversity are the foundations of U.S. citizenship and immigration law. The Immigration and Nationality Act is the body of legislation in charge of determining American immigration policy (INA). According to the INA, the United States may issue up to 675,000 different visa categories for permanent immigrants each year. In addition to those 675,000 visas, there is no annual cap on the number of U.S. citizens' spouses, parents, and minor children who can enter the country. Additionally, the U.S. Refugee Admissions Program requires the president to determine an annual number of refugees to be admitted through consultation with Congress.