“This rule adopts as final, with one substantive change, interim amendments to DHS regulations published in the Federal Register on June 9, 2008 and August 9, 2010 regarding the Electronic System for Travel Authorization (ESTA). ESTA is the online system through which nonimmigrant aliens intending to enter the United States under the Visa Waiver Program (VWP) must obtain a travel authorization in advance of travel to the United States. The June 9, 2008 interim final rule established ESTA and set the requirements for use for travel through air and sea ports of entry. The August 9, 2010 interim final rule established the fee for ESTA. This document addresses comments received in response to both rules and some operational modifications affecting VWP applicants and travelers since the publication of the interim rules. DATES: This rule is effective on July 8, 2015.” – Federal Register / Vol. 80, No. 109 / Monday, June 8, 2015.