design to the Americans with Disabilities Act (ADA). Electrical standards include UL in the U.S. and CE in Europe. In the retail space, you have Payment Card Industry (PCI) certification in the U.S. which is a descendant of VISA PED (relative of Chip and PIN in Europe). Interface design: Designing for interactive kiosks typically requires larger buttons and simpler decision trees than designing for a web or computer-based interactive. Catchy attractive animations and short dwell times are important. Durability: The intended location of the kiosk will largely influence the construction as materials and electronic requirements are significantly different for indoor vs. outdoor kiosks. Interactive kiosks around the world Government usage Several countries historically implemented the nationwide installation of kiosks for various purposes. One example of such large scale installations can be found in the United Kingdom, where thousands of special-purpose kiosks are now available to aid job-seekers in finding employment. The United States Department of Homeland Security has created immigration kiosks where visitors register when they enter the United States. There are also Exit kiosks where visitors register when they leave the U.S. The postal service has automated kiosks in many of the postal offices for self-service. The Veterans Administration has over 5,000 patient kiosks deployed. In 2020 the next generation kiosks along with mobile check-in for veterans began. In India, digital kiosks are used for various purposes, such as payment of bills. Industry usage It is estimated that over 1,200,000 kiosk terminals exist in the U.S. and Canada alone. Groups who use kiosks in their business environment include: Delta Airlines, United Airlines, JetBlue Airways, GTAA, Future Shop, The Home Depot, Target Corporation, and Wal-Mart. Types of kiosks Telekiosk The telekiosk can be considered the technical successor to the telephone booth, a publicly accessible set of devices that are used for communication. These can include email, fax, SMS, as well as standard telephone service. The Telekiosk is rarely seen anymore. Telekiosks gradually appeared around the United Kingdom in the first years of the 21st century. Some are situated in shopping centers and transport terminals, to provide detailed local information. Others are in public places, including motorway service areas and airports. The International Telecommunication Union is promoting the use of the telekiosk in Africa and parts of Asia where local people do not have access to communications technology. In part, this work addresses the "digital divide" between rich and poor nations.