Medical marihuana: taxation; sale of marihuana from a registered primary caregiver or licensed specialty medical grower to registered qualifying patient; exempt from sales tax. Amends 1933 PA 167 (MCL 205.51 - 205.78 ) by adding sec. 4ii.  TIE BAR WITH: HB 5301'21 , HB 5300'21 , HB 5319'21 , HB 5302'21