The U.S. will immediately stop issuing worker visas for commercial truck drivers, Secretary of State Marco Rubio announced, citing road safety risks and protection of American truckers’ jobs.

The pause, applying to all nationalities, will allow a review of screening and vetting protocols.

The move comes amid a shortage of about 60,000 drivers and efforts to enforce English proficiency and entry-level training standards, ABC News has reported.

Separately, the Trump administration is reviewing all 55 million U.S. visa holders for potential violations that could lead to revocation or deportation, expanding its ongoing crackdown on visa holders and unauthorized migrants.