In this June 15, 2019, file photo, migrants cross the Rio Grande illegally to surrender to the American authorities on the U.S.-Mexico border between Ciudad Juarez and El Paso. El Paso has swiftly become one of the busiest corridors for illegal border crossings in the U.S. after years as one of the sleepiest. (AP Photo/Christian Torres, File)
It will apply to about 400,000 applications a year from migrants seeking to adjust their status to a more permanent legal situation in the U.S. — which in most instances will mean someone applying for a green card.
Under the new rules, when someone files an application, the USCIS officer reviewing the case will look at the person’s history of access to public programs such as food stamps, many forms of Medicaid, public housing assistance, welfare cash payments and Supplemental Security Income.