ESTA is valid for 2 years. This procedure is mandatory for all citizen of countries wich do not have a visa requirement.
It is issued for all visits lasting a minimum of 3 months.
The following information may also be required:
Once we have received your approval and validated your payment, you will receive your Electronic Travel Authorization (ESTA) by e-mail. The processing and approval time is usually very short (a few hours to 48 hours)
The service provided here is to assist the travelers in the administrative process of applying for/obtaining the ESTA. This is a private site which is not affiliated with any government authority.
Your stay in USA will be valid for 3 months, for more than 3 months a new new ESTA is necessary (unless the Immigration Service sets another period according to your approval – a very uncommon decision).
CITIZEN ELIGIBLE OF THE (ESTA):