The US rolled out a new regulation on Wednesday that will deny asylum to most migrants crossing the US-Mexico border illegally, a key part of President Joe Biden's enforcement plan as Covid-19 border restrictions known as Title 42 end this week.
The final version of the regulation, which becomes effective on Thursday, has no major changes from a draft published in February, a senior Biden administration official told reporters on Tuesday evening.
The regulation creates a new presumption that migrants arriving at the border are ineligible for asylum if they passed through other nations without seeking protection elsewhere first or if they failed to use legal pathways for US entry.
The new restrictions, which will expire in two years, will apply to the vast majority of non-Mexican migrants since they typically pass through multiple countries en route to the US.
The Biden administration is grappling with an increase in already record levels of unauthorised border crossings as the Covid-19 restrictions, first implemented in March 2020, are set tolift on Thursday just before midnight. Migrants have been amassing in Mexico this week as thousands crossing into the US have strained border cities.
The Title 42 restrictions allow US authorities to rapidly expel many non-Mexican migrants to Mexico without the chance to seek US asylum. Mexicans, the nationality most frequently caught crossing, are able to be quickly returned to Mexico under bilateral agreements that predated the Covid-19 restrictions.
More than 10,000 migrants were caught crossing at the US-Mexico border illegally each day on Monday and Tuesday, said Brandon Judd, president of a union for border patrol agents. The total surpasses a scenario outlined by a top US border official last month for the period after Title 42 ends.
Border agents have been authorised to release migrants in border cities if US Immigration and Customs Enforcement (ICE) and charity organisations lack capacity to take them, Judd said.
US Customs and Border Protection (CBP) did not immediately respond to a request for comment.
Republicans have criticised Biden, a Democrat running for re-election in 2024, for rolling back the hardline policies of Republican former President Donald Trump, the current front-runner for his party's nomination.
Biden's new regulation restricting asylum access at the border resembles similar measures implemented under Trump that were blocked by US courts. The move also counters previous statements Biden made in 2020 on the campaign trail, saying he thought it was "wrong" for people not to be able to seek asylum on American soil.
Some Democrats and immigration advocates have said the regulation undercuts the ability to seek asylum at US borders as required by US law and international agreements. The American Civil Liberties Union has already signaled it will sue over the policy.
On the other side of the ideological spectrum, a coalition of 22 Republican state attorneys general separately opposed the measure, saying that it is "riddled with exceptions."
In addition to the bar on asylum seekers, which could ramp up deportations, Biden officials said in late April that they are expanding legal pathways for migrants abroad in order to provide alternative ways to enter the US and discourage illegal crossings.
On the call with reporters on Tuesday, Biden officials said the administration planned to open more than 100 migration processing centers in the Western Hemisphere and would launch a new online appointment platform in the coming days.
The officials also said they expected Mexico to step up immigration enforcement this week, including in southern Mexico.