Large tech companies like Amazon, Google, and Microsoft have instructed employees with H-1B visas to remain in the United States following President Trump’s proclamation of a $100,000 fee for visa applications. The companies have advised those with H-1B visas to avoid foreign travel for now and to return before the fee takes effect on Sunday at 12:01 am Eastern.

According to reports, Amazon employees have been granted the most H-1B visas this fiscal year. The White House clarified that the fee will only apply to new applicants, not existing visa holders or renewals. H-1B visa holders are assured they can leave and re-enter the country as usual, unaffected by the recent proclamation.