Immigration 101

The U.S. immigration system is complex and can be difficult to understand. These resources provide key data points, historical information, and background on hot topics in immigration. Learn the basics about immigration.

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Fact Sheet
Temporary Protected Status (TPS): An Overview

This fact sheet provides an overview of how Temporary Protected Status designations are made, what benefits TPS confers, and how TPS beneficiaries apply for and regularly renew their status.

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All Immigration 101 Content

  • Special Report

Have We Learned the Lessons of History? World War II Japanese Internment and Today's Secret Detentions

Publication Date: 
October 1, 2002
In the aftermath of the horrific events of September 11, 2001, our leaders have begun exercising extraordinary powers to ensure our collective safety, sacrificing the personal liberties of some,...
  • Research and Analysis

The Passage From India: A Brief History of Indian Immigration to the U.S.

Publication Date: 
June 1, 2002
From humble beginnings, Indian immigrants have overcome great odds to become one of the most influential communities in American society today.
  • Research and Analysis

Preliminary Census Data Released: New Estimates Attempt to Reveal Demographics of U.S.

Publication Date: 
March 1, 2002
A recent 2000 Census Bureau report finds an increase in foreign-born residents who are naturalized citizens. Survey data shows the foreign-born percentage of the U.S. population remains constant...
  • Fact Sheet

The 2010 Census: The Stakes of an Accurate Count

Every 10 years, as required by the U.S. Constitution, the federal government undertakes a massive nationwide effort to count the residents of the United States, who now number more than 300 million...
  • Blog

Fear of Another 9/11 Continues to Drive US Immigration Policy 20 Years Later

September 14, 2021

The September 11th terrorist attacks not only led to the tragic deaths of 2,977 people, they fundamentally changed the nature of immigration law and policy in the United States. Since 9/11, the U....

  • Blog

The House Offers First Glimpse at Legalization for Millions of Immigrants Through Reconciliation

September 13, 2021

House Democrats began to mark up a budget reconciliation bill on September 10 that would provide a path to legal status for millions of undocumented immigrants in the United States. Although the...

  • Blog

California Law Would Prevent Transfers From Local Law Enforcement to ICE Custody

September 9, 2021

Proposed legislation in California that would further limit the state’s involvement in immigration detention has made progress toward becoming law. The VISION Act would prevent transfers to U.S....

  • Blog

President Biden is Overseeing a Historic Decline in Legal Immigration

August 31, 2021

The Biden administration predicts that it will fail to issue many of the legal permanent resident visas—also known as green cards—allotted this year for immigrants who have been sponsored by a U.S...

  • Blog

Felony Reentry Immigration Law Is Unconstitutional Due to Racist Origins, Judge Rules

August 27, 2021

The post Felony Reentry Immigration Law Is Unconstitutional Due to Racist Origins, Judge Rules...

  • Blog

Diversity Visa Lottery Winners Might Lose Chance to Come to the U.S. Due to Delays, Trump Policies

August 25, 2021

For the second year in a row, many winners of the diversity visa lottery face the prospect of losing their chance to come to the United States because the federal government can’t—or won’t—issue...

  • Blog

People of Color Made Up All of the United States’ Population Growth in the Last 10 Years

August 18, 2021

Demographers have known for decades that the United States is well on its way to becoming a predominantly multi-racial and multi-ethnic society. New data from the 2020 Census reveals how rapidly...

  • Blog

America’s Ending in Afghanistan Must Ensure Safe Passage for Our Afghan Allies

August 18, 2021

Across centuries, Afghanistan has been a nation unconquerable. From the conquest of Alexander the Great to the United States military, insurgent forces have beat back the offensive from some of...

  • Blog

The New CBP One App May Put Immigrants and Travelers’ Privacy at Risk

August 5, 2021

It is unquestionable that technology creates efficiencies. But efficiency should not come at the total expense of privacy. A new app from U.S. Customs and Border Protection (CBP) toes that line...

  • Blog

The COVID-19 Pandemic Made USCIS Backlogs Go from Bad to Worse

July 6, 2021

Backlogs, processing delays, and revenue shortfalls are nothing new at U.S. Citizenship and Immigration Services (USCIS). The agency has long suffered from severe structural problems that hurt...

  • Blog

English-Only Education is on the Decline—But Arizona Holds Out

May 5, 2023

Written by Bella Wexler, Communications Fellow at the American Immigration Council. As of 2023, Arizona remains the only state with English-only education legislation still in effect. Its law—...

  • Practice Advisories

Nightingale v. USCIS and FOIA Requests for Immigration Case Files (A-Files)

Publication Date: 
April 17, 2023
This practice advisory explains 1) the ways to submit a FOIA request for a client’s immigration records, or A-File, 2) provides suggestions for avoiding agency rejections of the requests, and 3) identifies issues related to the Nightingale injunction that class counsel are monitoring.
  • Blog

A Florida Court Blocks ‘Parole + ATD’ Program in Latest Fight Between State and Federal Immigration Authority

March 21, 2023

On March 8, a Florida court blocked the Biden administration from using a key border program referred to as Parole plus Alternative to Detention (Parole + ATD). The court’s decision vacated the...

  • Blog

Immigration Agencies Violate FOIA, Harming Immigrants and Government Transparency Alike

March 17, 2023

Immigration agencies have a problem with transparency. With an immigration system as complex as ours and Freedom of Information Act offices that are chronically underfunded, it’s no surprise that...

  • Blog

Black Immigrants in the United States: Population, Spending Power, and Political Capital

February 24, 2023

Written by Steven Hubbard, Senior Data Scientist and Robin Lundh, Research Manager Black immigrants make up a vital part of America’s rich cultural life. Think of authors Chinua Achebe and...

  • Blog

At Dueling Border Hearings, New House Majority Pushes Partisan Narrative Over Facts

February 10, 2023

In January, Republicans took control of the House of Representatives. After a lengthy fight over the Speaker of the House resolved, the new majority wasted no time in holding multiple hearings on...

  • Press Release

New Research Shows the Key Role Immigrants Play in 13 States’ Healthcare Workforces

February 3, 2023
The American Immigration Council reports underscore the key role of immigrant healthcare workforces of Arizona, Florida, Georgia, Iowa, Kansas Missouri, North Carolina, Oklahoma, Tennessee, Texas, Utah, Virginia, and Wisconsin.
  • Blog

USCIS’ Funding Crisis Might Be Too Big for the Agency to Fix by Itself

January 17, 2023

On January 3, U.S. Citizenship and Immigration Services (USCIS) finally published a new proposed fee schedule for immigration benefits—which is to say, it took an important step to becoming a...

  • Fact Sheet

An Overview of the “Uniting for Ukraine” Program

Publication Date: 
January 13, 2023
This program allows Ukrainians displaced by the Russian invasion of Ukraine to apply to come to the United States through “humanitarian parole.” Ukrainians who are granted humanitarian parole may...
  • Blog

Time Is Running Out for Congress to Act on Immigration This Year

December 8, 2022

Can immigration avoid a cold winter in Congress? That’s the question immigrants and their advocates are asking as time runs out on the current Congress. The fate of Afghan evacuees, Dreamers,...

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