Transportation Secretary Sean Duffy announced on Friday that the government will withhold millions in federal funding to New York unless it complies with commercial driver’s license regulations, signaling the government’s intention to intensify scrutiny of foreign-born truckers.

Duffy gave the state 30 days to comply or else lose access to $73 million in highway funding during a press conference in Washington, D.C. The development comes after a federal audit concluded New York has allowed people who enter the United States on work permits to “illegally” obtain CDLs they could use even after their work permits expire, Duffy said.