Sarasadat Khademalsharieh, ranked No. 17 among women in the world, will not return to Iran after forgoing a head scarf at an international championship.
From Jan. 8, visitors will be required to show only a negative P.C.R. test taken within 48 hours. The restrictions had cut the country off from the rest of the world for nearly three years.
At least 14 states have passed bans on the service on government-issued devices in recent weeks. And Congress appears poised to pass a similar prohibition for federal workers.