The Electronic System for Travel Authorization is often referred to as ESTA. This forms part of the United States Visa Waiver Program and allows people to enter the US without a visa for a maximum of 90 days. However, you have to be coming to the US either for a business trip or a holiday. People from all over the world, including the UK, can apply for an ESTA. The US Customs and Bord... https://www.estaapplicationuk.co.uk