The immigration and nationality act of nineteen sixty four embalished which are they following
1. Prohibition of discrimination based on national origin in the issuance of visas
2. Establishment of a preference system for the issuance of immigrant visas based on family relationships and job skills
3. Creation of the H-1B visa program for skilled foreign workers
4. Expansion of refugee admissions and asylum protections
5. Provision for the naturalization of foreign-born spouses of U.S. citizens
6. Authorization for the President to adjust immigration levels in response to international events.