Immigrants who hope to challenge their deportation orders could be charged nearly $1,000 to go to court under a proposed new regulation unveiled on Thursday, a nearly tenfold increase that immigration lawyers warn could make deportation appeals much more difficult to pursue.

The new fee schedule is the latest in a series of moves by the Trump administration to speed up deportations and discourage the arrival of immigrants. Under the same proposal, the administration wants to require asylum seekers to pay a $50 fee to have their cases heard in court; historically, the asylum process has been available to people fleeing persecution regardless of their ability to pay.

In proposing the new fees, the Executive Office for Immigration Review, an arm of the Justice Department, said asking immigrants to pay a greater share of costs would help make sure that court resources were available and would also assure “that U.S. taxpayers do not bear a disproportionate burden in funding the immigration system.”

The proposed fees are now open to public comment for a 30-day period. The fees were last increased in 1986, the agency said, and applicants would continue to be able to apply for waivers if they are unable to pay.