In any review of contactless technology, it quickly becomes apparent that there are multiple technology choices–some considered industry standard and others that are proprietary to a specific vendor. To date, three contactless technologies have received standards classification from the International Organization for Standards (ISO), an umbrella organization made up of 130 national standards bodies from around the world, and the International Electro Technical Committee (IEC), an organization representing more than 50 national standards bodies focused on electronics.