This is one of the online application programs to develop by US Government it allows the pre-screen for all the travelers.
The Electronic System for Travel Authorization is one of the web-based authorization systems from any foreign visitors to the US from Visa Waiver Program (VWP) countries.
ESTA Visa USA is an automated system it determines the eligibility of visitors. It does not determine whether the traveler is admissible to the United States.
This application to collects the biographic information and answers to the VWP eligibility. It is an automated system the direct eligibility of visitors to travel 38 countries to the United State under the Visa Waiver Program (VWP) and such travel poses any law security risk. Those 38 countries are eligible to the Visa Waiver Program. The visitors may stay from 90 days in the United States. And also time spent in Mexico and many more, it arrives through the United States.
ESTA is a pre – authority to the Untied State and Filing online application is the first step toward travel authorization and one has to be careful when entering the travel details like passport no. in the application form and ESTA is valid for two years.