Official United States visa information: Click here

A valid passport is required by all individuals wishing to enter the United States. Validity varies - for most countries the passport must be valid for at least six months from the date on which the holder enters the USA.

Before traveling to the United States, a non-US citizen must generally obtain a nonimmigrant visa for temporary stay. The type of visa you will need is based on the purpose of your travel. Advance travel planning and early visa application are important, since visa applications are subject to a greater degree of scrutiny than in the past. Most administrative processing is resolved within 60 days of application, however applicants or their representatives will need to allow at least 90 days from the date of interview or submission of supplemental documents to obtain the required visa.

ESTA:

The Electronic System for Travel Authorization (ESTA) came into force on 12 January 2009. It is a fully automated, electronic system for screening passengers before they begin travel to the United States under the Visa Waiver Program.

ESTA applications must be submitted at least 72 hours before travel to the USA. Note: The granting of an ESTA does not guarantee entry to the USA.

Download the US Government Official Invitation Letter: For any inquiries concerning this letter, please contact Dr. Charles Ehrlich, CIML Member for the USA.