The U.S. Department of Homeland Security on the 7th proposed a rule to charge high fees for international students working in the United States through the Optional Practical Training program. According to Sina Finance, schools would have to pay $70,000 for each student's first OPT application and another $30,000 for an extension.

The program allows international students on student visas to take jobs directly related to their field of study and serves as an important bridge to work visas. The Department of Homeland Security said the measure is intended to combat visa fraud and abuse, and that OPT should not become a back door into the U.S. labor market.

The American Council on Education said in a statement that shutting international students out would harm U.S. innovation, economic growth, workforce development, and global leadership. The Department of Homeland Security plans to finalize the rule after seeking public comment, and U.S. media said the fee measure may face legal challenges.