Ohio Revised Code Title XXXVII. Health Safety Morals § 3796.29

(1) Prohibits or limits the operations of a license holder that received a provisional license or certificate of operation before the effective date of this amendment, except that a municipal corporation or township may enforce such an ordinance or such a resolution if it was adopted before the effective date of this amendment;

(2) Prohibits or limits any activity authorized under this chapter, except as expressly permitted under division (A) of this section;

(3) Prohibits or limits research related to marijuana conducted at a state university, academic medical center, or private research and development organization as part of a research protocol approved by an institutional review board or equivalent entity.