To reduce the growing prison population and escalating prison costs, the U.S Bureau of Prisons says it is now revising its “compassionate release” rules so more ailing and aging inmates can be freed.

A report from the Justice Department’s inspector general says the revised rules will expand the compassionate release program by making inmates with a life expectancy of up to 18 months eligible for consideration (versus the current 12 months).

The revised rules also will explain what level of functioning is “extraordinary and compelling” enough for inmates to be considered for release.