Visitors to the U.S. require a visa which is known as a “Electronic System for Travel Authorisation”
Up until now, it has sometimes been possible to gain the approval immediately or within an hour which has been a lifeline for those that have forgotten to apply or who choose to travel at short notice.
Customs and Border Protection (CBP) has advised that changes in ESTA application processing mean real-time approvals will no longer be available.
International travellers using the Electronic System for Travel Authorization (ESTA) for travel to the United States should apply as soon as possible but not less than 72 hours before their international flight is scheduled to depart.
Business Travellers who may need to travel at short notice should therefore apply for a ESTA in advance.
The genuine site for USA visa applications is on our useful sites page