Diversity visas are intended to provide an immigration opportunity for persons from countries other than the countries that send large numbers of immigrants to the U.S.
The law states that no diversity visas shall be provided for natives of “high-admission” countries.
The law defines this to mean countries from which a total of 50,000 persons in the Family-Sponsored and Employment-Based visa categories immigrated to the United States during the previous five years.
Each year, the USCIS adds the family and employment immigrant admission figures for the previous five years to identify the countries whose natives will be ineligible for the annual diversity lottery.
Because there is a separate determination made before each annual E-DV entry period, the list of countries whose natives are not eligible may change from one year to the next.