This is divided into three groups: "New Law" Elderly Inmates, Elderly Inmates with Medical Condition, and Other Elderly Inmates. The "New Law" Elderly Inmates category requires the inmate to have committed their offense on or after November 1, 1987, be 70 years of age or older, and have served 30 or more years. The Elderly Inmates with Medical Condition category requires the inmate to be 65 or older, and suffering from chronic or serious medical conditions related to the aging process, including "deteriorating mental or physical health" that "substantially diminishes" their ability to function in a prison. Additionally, conventional medical treatments must not be able to substantially improve their "mental or physical condition," and they must have served at least half of their sentence. The Other Elderly Inmates category requires the inmate to be 65 or older and have "served the greater of 10 years or 75%" of their prison sentence.