# Immigration: Grounds of Inadmissibility

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URL: https://www.frixlaw.com/law-library/documents/crs%3AIF12662

## Record

- **Collection:** Congressional research report
- **Document type:** CRS In Focus
- **Published:** July 29, 2024
- **Citation:** IF12662

## Text

Updated July 29, 2024

Immigration: Grounds of Inadmissibility
Under the Immigration and Nationality Act (INA), aliens
may be denied admission to the United States or face other
adverse immigration consequences if they are inadmissible.
(The INA defines an “alien” as any person not a citizen or
national of the United States.) Immigration officials from
different agencies make inadmissibility determinations in
various contexts, including, for instance, when adjudicating
an application for a nonimmigrant (temporary) or
immigrant (permanent) visa to come to the United States,
when inspecting aliens arriving at U.S. ports of entry or
encountered within the country after entering without
inspection, when considering an application to adjust to
lawful permanent resident (LPR) status, or when
determining eligibility for certain forms of relief from
removal. This In Focus provides a brief overview of the
grounds of inadmissibility.
Health-Related Grounds
The INA bars the admission of aliens who (1) have
communicable diseases of public health significance, (2)
are applying for immigrant visas or adjustment to LPR
status and lack required vaccinations, (3) are determined to
have physical or mental disorders with associated harmful
behavior, or (4) are found to be drug abusers or addicts.
These limitations are subject to waivers and exceptions.
Criminal and Related Grounds
The INA prohibits the admission of certain criminal aliens,
including, for example, those who have committed crimes
of moral turpitude, those with two or more criminal
convictions (other than purely political offenses) for which
the aggregate sentences were five years or more of
imprisonment, controlled substance traffickers, those
engaged in prostitution or commercialized vice, human
traffickers, and money launderers. There are exceptions in
certain situations. For instance, the crime of moral turpitude
ground of inadmissibility does not apply to those who
committed the crime before the age of 18 and who
committed the crime and were released from imprisonment
more than five years before their application for a
visa/admission. Additionally, some criminal grounds of
inadmissibility may be waived in certain circumstances.
Security and Related Grounds
The INA prohibits the admission of aliens who have
engaged in terrorist activity, are considered likely to engage
in terrorist activity, have incited terrorist activity, endorse
or espouse terrorist activity (or persuade others to), have
received military-type training from a terrorist organization,
are representatives or members of (or associated with) a
terrorist organization, are representatives of a group that
endorses or espouses terrorist activity, or are the spouses or
children of persons inadmissible on terrorist-related
grounds based on activity occurring within the last five
years (subject to exception). The INA defines “terrorist

activity” to include certain unlawful activities, such as the
hijacking or sabotage of any conveyance, the detention of a
person in order to compel a governmental organization to
do or abstain from a certain act, assassination, and the use
of a weapon of mass destruction. The INA defines “engage
in terrorist activity” to cover a wide range of activities, such
as committing terrorist activity, soliciting funds for terrorist
activity, and providing material support to terrorist
organizations. Some of the terrorist grounds of
inadmissibility may be waived in certain circumstances.
With some exceptions, the INA also prohibits the admission
of aliens who seek to enter the United States to engage in
activities related to espionage or sabotage, the violation of
certain export laws, the violent opposition to or overthrow
of the U.S. government, or other unlawful activity; aliens
whose entry or activities in the United States could
adversely affect U.S. foreign policy; members of the
Communist or any other totalitarian party; participants in
Nazi persecution, genocide, or acts of torture or
extrajudicial killing; and those who have recruited or used
child soldiers.
Public Charge Grounds
With some exceptions, the INA makes aliens who are
“likely at any time to become a public charge”
inadmissible. The INA does not define the term public
charge; the definition has been set forth by agency
guidance and regulation. It is currently defined as a person
who is or is likely to become primarily dependent on public
cash assistance or government-funded institutionalization
for long-term care. When making public charge
determinations, immigration officers consider the foreign
national’s past, current, or future receipt of Supplemental
Security Income (SSI), Temporary Assistance for Needy
Families (TANF), state and local cash assistance (general
assistance); and benefits provided for institutionalized longterm care. They also consider age, health, family status,
assets, resources, financial status, education, and skills.
Labor Certification and Qualifications for Certain
Immigrants Grounds
The INA bars certain aliens who seek to enter the United
States to perform skilled or unskilled labor unless the
Secretary of Labor certifies that there are not sufficient U.S.
workers who are able, willing, and qualified to perform
such work, and that the alien’s employment will not
adversely affect the wages and working conditions of
similarly employed U.S. workers. Some classes of aliens
are exempt from labor certification (e.g., permanent
immigrants entering as priority workers who are persons of
extraordinary ability in the arts, sciences, education,
business, or athletics), and this ground of inadmissibility
can be waived in some cases. Some INA provisions also bar

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Immigration: Grounds of Inadmissibility

the admission of certain “unqualified physicians” and
uncertified health care workers, unless an exception applies.
Illegal Entrants and Immigration Violators Grounds
The INA specifies eight categories of inadmissible illegal
entrants and immigration violators: (1) aliens present in the
United States without being admitted or paroled, or who
arrive in the United States at any time or place other than as
designated (there are exceptions for certain battered spouses
and children); (2) aliens who “without reasonable cause”
fail to attend their removal proceedings and who seek
admission within five years of their departure or removal;
(3) alien who have, by fraud or willful misrepresentation of
a material fact, sought to procure or have procured
admission into the United States or a benefit under the INA
(unless they qualify for a waiver); (4) aliens who falsely
represent themselves to be U.S. citizens for any purpose or
benefit under the INA or any other federal or state law,
except under narrow circumstances; (5) stowaways; (6)
human smugglers (subject to waiver); (7) aliens subject to
civil penalties for document fraud under INA Section 274C
(subject to waiver); and (8) student visa abusers who have
been outside the United States for less than five years.
Documentation Requirements Grounds
The INA makes aliens seeking admission as immigrants
(i.e., LPRs) inadmissible if they lack a valid immigrant
visa, reentry permit, border crossing identification card, or
other valid entry document, and a valid unexpired passport
or other suitable travel document. Aliens seeking admission
as nonimmigrants (e.g., temporary workers) are
inadmissible if they lack a passport valid for a minimum of
six months from the date of the expiration of the initial
period of their admission to the United States or they lack a
valid nonimmigrant visa or border crossing identification
card. Immigration officials have authority to waive these
documentation requirements in some cases (e.g., for those
traveling under the Visa Waiver Program).
Ineligibility for Citizenship Grounds
The INA makes certain aliens who are “ineligible for
citizenship” inadmissible. Although this language may
suggest a range of ineligibilities linked to the INA’s
naturalization provisions, its actual effect is to bar the entry
of individuals who deserted their U.S. military service or
evaded the military draft (LPRs are eligible to enlist in the
U.S. Armed Forces).
Aliens Who Were Previously Removed or Accrued
Unlawful Presence Grounds
Under the INA, certain aliens who were previously
removed or accrued unlawful presence in the United States
are inadmissible. First, aliens who have been previously
removed are inadmissible for 5, 10, or 20 years depending
on the specifics of their case, and they are permanently
inadmissible if convicted of an aggravated felony. Second,
aliens who were unlawfully present in the United States for
more than 180 days but less than one year, and departed the
United States before the commencement of formal removal
proceedings, are inadmissible for three years; and those
who were unlawfully present for one year or more are
inadmissible for 10 years after the date of their departure or
removal (some periods do not count toward the accrual of

unlawful presence, including any period when the alien is
under the age of 18 or has a pending asylum application,
and this bar does not apply to certain battered spouses and
children and victims of trafficking). Third, aliens who enter
or attempt to reenter the United States without authorization
after accruing more than one year of unlawful presence in
the United States or after being ordered removed are
permanently inadmissible.
These grounds of inadmissibility can be waived in some
circumstances, depending on the facts of the case and the
specific ground being applied (e.g., if the DHS Secretary
“has consented to the alien’s reapplying for admission”).
Miscellaneous Grounds
The INA contains “miscellaneous” grounds of
inadmissibility applicable to aliens who (1) are seeking
admission as LPRs and coming to the United States to
practice polygamy; (2) are required to accompany (as
guardians) aliens who are inadmissible and certified to be
helpless from sickness, mental or physical disability, or
infancy; (3) unlawfully withhold custody of a U.S. citizen
child abroad from a person granted custody of the child by
a U.S. court or who assist or are certain relatives of the
child abductor (subject to certain exceptions); (4) have
voted in violation of any federal, state, or local
constitutional provision, statute, ordinance, or regulation
(subject to exception); or (5) are former U.S. citizens who
officially renounced their citizenship to avoid taxation.
Suspension of Entry
The INA also authorizes the President “to suspend the entry
of all aliens or any class of aliens” whenever the President
“finds that the entry of any aliens or of any class of aliens
into the United States would be detrimental to the interests
of the United States.” Presidential Administrations have
invoked this authority on many occasions—for example, to
restrict the entry of nationals of certain countries that
inadequately shared information and presented national
security concerns, and to suspend entry of aliens arriving by
air from certain countries during the COVID-19 pandemic.
Waiver Authority for Nonimmigrants
Immigration officials can also waive most grounds of
inadmissibility for aliens seeking to enter the United States
temporarily as nonimmigrants (e.g., tourists). This waiver
authority does not cover aliens who are inadmissible under
certain security-related grounds (e.g., espionage activity).
Immigration officials can also waive inadmissibility, except
for certain grounds, for aliens seeking nonimmigrant status
as victims of trafficking or specified crimes.
Parole of Applicants for Admission
The INA authorizes immigration officials to parole an alien
seeking admission who is otherwise inadmissible into the
United States temporarily “on a case-by-case basis for
urgent humanitarian reasons or significant public benefit.”
While parole does not constitute an admission to the United
States, DHS has utilized this authority extensively to allow
many applicants for admission to enter the United States for
certain periods of time and for specific reasons.
Abigail F. Kolker, Analyst in Immigration Policy
Hillel R. Smith, Legislative Attorney

https://crsreports.congress.gov

Immigration: Grounds of Inadmissibility
IF12662

Disclaimer
This document was prepared by the Congressional Research Service (CRS). CRS serves as nonpartisan shared staff to
congressional committees and Members of Congress. It operates solely at the behest of and under the direction of Congress.
Information in a CRS Report should not be relied upon for purposes other than public understanding of information that has
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https://crsreports.congress.gov | IF12662 · VERSION 4 · UPDATED

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Source: Frix Law Library, https://www.frixlaw.com/law-library/documents/crs%3AIF12662. Public record. Not legal advice.
