Limits punishment to $250 fine or community service for possession, cultivation, sale, or transportation of up to two ounces of marijuana; limits punishment to six months in county jail and/or $500 fine if violator is less than 21. Retains existing penalties for marijuana offenses on school grounds and for offenses involving sale to a minor, employment of minor in criminal marijuana enterprise, or driving under influence of marijuana. Makes property forfeiture laws inapplicable to marijuana offenses involving two ounces or less. Retains laws regarding marijuana in the workplace, driving under influence, and medical marijuana. Summary of estimate by Legislative Analyst and Director of Finance of fiscal impact on state and local government: U...