The American Cryonics Society is the oldest cryonics organization still in existence. Since 1972 ACS has offered a program where members who enroll, are placed into cryonic suspension upon their deaths and then maintained in liquid nitrogen. This program provides for continuous funding so that the relatives of the subject are not required to pay for the initial freezing, yearly maintenance in liquid nitrogen, or eventual reanimation (should the latter prove possible). Members often provide such funding through the purchase of a life insurance policy.