What piece of legislation was passed by congress after world war ii confirming the national origins system of immigration?

This law is known as the Immigration and Nationality Act of 1952. This law kept in place the national origins quota. This meant that there was only a certain amount of citizens from particular countries that were allowed to enter the US. Even though this keeps in place this quota, the law does remove racial barriers for immigration and naturalization purposes.

Amunicipal department