Australia's National Livestock Identification System, or NLIS, is used to identify and track livestock from property of birth to slaughter using RFID devices and a central electronic database of an animal’s residency and animals it has interacted with. The government claims the system improves food safety and access to export markets, and assists with disease management. Farmers must register their property if they hold one or more heads of livestock including horses, cattle, sheep, goats, pigs, deer and camels, though the NLIS will not confirm ownership of livestock. The system originates from a cattle-tracing system introduced in Australia in the 1960s to help fight bovine tuberculosis. The Australian system has over 11,000,000 phantom livestock in the system that do not exist. This system costs farmers money because of the increased handling time and lost margins when tags do not match in the system resulting in lower payments to farmers.