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*.Research Service
Facial Recognition Technology for Certain
Traveler and Noncitizen Identity Verification
June 29, 2021
Facial recognition technology (FRT), which uses algorithms to compare faces against a collection of
known faces, is a biometric tool employed by law enforcement, including U.S. Customs and Border
Protection (CBP) officials. FRT can be used to verify the identity of travelers and certain noncitizens
awaiting entry.
FRT is used in two primary ways:
  identification searches, comparing features of aprobe photo with those in a database of
images to produce a gallery of potential matches ranked by similarity (not a single
affirmative match), and
  identity verifications, comparing a probe photo against known photos to produce a binary,
match/no match result.
Traveler Verification Service (TVS)
CBP employs FRT at many air, land, and sea ports of entry and preclearance locations, both domestically
and abroad, and used it to process over 23 million travelers in FY2020. Specifically, CBP, in partnership
with the Transportation Security Administration (TSA), uses FRT to verify travelers' identities. TVS is a
public-private partnership between the federal government and private airlines, airports, and cruise lines.
It compares a traveler's live photograph (taken, for example, by a gate agent) to a gallery of preexisting
photographs maintained by CBP. The composition of the galleries depends on the travel context. TVS
provides a match or no match result within two seconds. In case of the latter result, the traveler's identity
is checked manually by a CBP agent.
TVS Access through CBP One
In October 2020, CBP launched CBP One, a publicly available mobile application and portal for the
public to interact with CBP. Its functionality differs depending on the type of user. For instance, cargo
carriers can make appointments for the inspection of perishable items, travelers can apply for and view
their 1-94 forms, and international organizations (IOs) can verify the enrollment of individuals in certain
programs-specifically, the Migrant Protection Protocols (MPP) program.
Congressional Research Service
https://crsreports.congress.gov
IN11695
CRS INSIGHT
Prepared for Membersand
Committeesof Congress

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