Numerical Limit, Exempt from
Those aliens accorded lawful permanent residence who are exempt from the provisions of the flexible numerical limit of 675,000 set by the Immigration Act of 1990. Exempt categories include immediate relatives of U.S. citizens, refugees, asylees (limited to 10,000 per year by section 209(b) of the Immigration and Nationality Act), Amerasians, aliens adjusted under the legalization provisions of the Immigration Reform and Control Act of 1986, and certain parolees from the former Soviet Union and Indochina.
Source: U.S. Citizenship and Immigration Services