---
title: "Abolished national-origins immigration quotas — Definition"
description: "The abolished national-origins immigration quotas ended a discriminatory visa system favoring Northern and Western Europeans, impacting U.S. immigration policy."
url: "https://modeldiplomat.com/learn/glossary/abolished-national-origins-immigration-quotas"
---

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Model Diplomat Research Team · Last reviewed June 22, 2026

TL;DR

- The Immigration and Nationality Act of 1965 (Hart-Celler Act) ended the national-origins quota system that since 1924 had allocated U.
- S.
- Which law abolished the national-origins immigration quotas?
- What system did the 1924 Johnson-Reed Act use, and why was it discriminatory?
- What two principles organized the 1965 preference system?

[Civil Service & Diplomatic Exams](https://modeldiplomat.com/learn/civil-services/glossary)Updated June 22, 2026

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President Lyndon B. Johnson signed the Hart-Celler Act beneath the Statue of Liberty on 3 October 1965, abolishing the national-origins quotas that since 1924 had favored Northern and Western European immigrants.

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