California has the oldest medical marijuana program in the US and this is the state that voted to legalize medical marijuana in the year 1996. Also, California is home to the largest medical marijuana industry in America and following this one thing that everyone anticipated was a medical marijuana sales tax. The same has been finally introduced in the state which is expected to result in a 15% sales tax. As per reports, California would levy a 15 percent tax on all the medical marijuana sales in order to enforce new regulations and pay for state programs along with rehabilitation and parks under. All this has been implemented under a bill introduced by the concerned authorities.