Which immigration act lifted all numerical restrictions on the immigration of spouses, children, and parents of U.S. citizens?

Question

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The 1965 Amendments to the Immigration and Nationality Act, also known as the Hart-Celler Act, abolished the national origins quota system and established a new immigration policy based on reuniting immigrant families and attracting skilled labor to the United States. This act lifted numerical restrictions on the immigration of spouses, children, and parents of U.S. citizens.

Which Immigration Act Lifted All Numerical Restrictions on the Immigration