Passengers who were physically present in the Schengen Area, the United Kingdom, Republic of Ireland, India, Iran, China, Brazil or South Africa 14 days before their trip are not permitted to travel to the USA. Exemptions are granted to US citizens, lawful US permanent residents and non‑US citizens who are the spouse of a US Citizen or lawfully permanent residents.
For a detailed overview of the regulations for entry into the US during the COVID period, please refer to the Centers for Disease Control and Prevention website.