All passengers travelling to Sri Lanka on or after the 01st of October 2011 will require an Electronic Travel Authorization, which can be obtained online with a fee applicable. All passengers are required to obtain this authorization by visiting http://www.eta.gov.lk/visainfo/center.jsp?locale=en_US, filling the required information and paying the visa fee applicable. It is advised that all passengers carry the authorization approval form when arriving to the country at which point the visa would be stamped. Please visit the above link for more information about the new visa system. Passports must be valid for at least 6 months after your return from Sri Lanka and have at least 2 blank pages.