The Biden administration says it will appeal a federal court decision last month that blocked a Trump-era policy allowing for the quick removal of asylum seekers at the border.  

The Homeland Security Department said it would file an appeal with the U.S. Court of Appeals for the District of Columbia, challenging U.S. District Judge Emmet Sullivan’s November ruling that ordered President Biden to lift the asylum restrictions.

US Mexico border security

FILE: A Border Patrol agent walks between a gap along the border wall between the US and Mexico in Yuma, Arizona on June 1, 2022. (Patrick T. FALLON / AFP via Getty Images)

The enforcement rule first took effect in March 2020, allowing the federal government to rapidly expel migrants seeking asylum to prevent the spread of COVID-19.

BIDEN BLASTED BY BORDER PATROL UNION OVER POLICIES, DECLINING TO VISIT DURING ARIZONA TRIP: ‘COWARDICE’

The restrictions were implemented under former President Donald Trump at the outset of the COVID-19 pandemic. The practice was authorized under Title 42 of a broader 1944 law covering public health, and has been used to expel migrants more than 2.4 million times. 

Migrants at the southern border in Arizona

FILE: A group of Brazilian migrants make their way around a gap in the U.S.-Mexico border in Yuma, Ariz., seeking asylum in the U.S. after crossing over from Mexico, June 8, 2021. (AP Photo/Eugene Garcia)

The Biden administration says the U.S. Centers for Disease Control and Prevention (CDC) is working on a new regulation to formalize the border restrictions.

CLICK HERE TO GET THE FOX NEWS APP

Sullivan, who was appointed to the court by President Bill Clinton, has called the expulsion of migrants under the rule "arbitrary and capricious." The administration’s appeal could scuttle a Dec. 21 deadline set by Sullivan for his order to take effect.

The Associated Press contributed to this report.