California’s medical marijuana law is amended by Senate Bill 420. The bill requires the State Department of Health Services to “establish and maintain a voluntary program for the issuance of identification cards to qualified patients.” It creates possession limits of “no more than eight ounces of dried marijuana per qualified patient” and “no more than six mature or 12 immature marijuana plants per qualified patient.”
SB 420 also states that qualified patients and caregivers “who associate within the State of California in order collectively or cooperatively to cultivate marijuana for medical purposes, shall not solely on the basis of that fact be subject to state criminal sanctions.”