California End of Life Option Act is a law enacted in June 2016 by the California State Legislature which allows terminally ill adult residents in the state of California to access medical aid in dying by self-administering lethal drugs, provided specific circumstances are met. The law was signed in by California governor Jerry Brown in October 2015, making California the fifth state to allow physicians to prescribe drugs to end the life of a terminally ill patient, often referred to as physician-assisted suicide.