The Department of Homeland Security on Thursday instituted a new $1,000 fee to deter illegal immigrants from abusing the nation’s parole system in the future.

The parole fee applies to all immigrants granted parole under a section in the Immigration and Nationality Act unless they fall under certain exceptions, such as humanitarian parole or migrants under 18. In this context, federal law allows Homeland Security Secretary Kristi Noem to parole inadmissible immigrants into the United States temporarily on a case-by-case basis.