2923.16 Improperly handling firearms in a motor vehicle.
(A) No person shall knowingly discharge a firearm while in or on a motor vehicle.
(B) No person shall knowingly transport or have a loaded firearm in a motor vehicle in such a manner that the firearm is accessible to the operator or any passenger without leaving the vehicle.
(C) No person shall knowingly transport or have a firearm in a motor vehicle, unless the person may lawfully possess that firearm under applicable law of this state or the United States, the firearm is unloaded, and the firearm is carried in one of the following ways:
(1) In a closed package, box, or case;
(2) In a compartment that can be reached only by leaving the vehicle;
(3) In plain sight and secured in a rack or holder made for the purpose;
(4) If the firearm is at least twenty-four inches in overall length as measured from the muzzle to the part of the stock furthest from the muzzle and if the barrel is at least eighteen inches in length, either in plain sight with the action open or the weapon stripped, or, if the firearm is of a type on which the action will not stay open or which cannot easily be stripped, in plain sight.
(D) No person shall knowingly transport or have a loaded handgun in a motor vehicle if, at the time of that transportation or possession, any of the following applies:
(1) The person is under the influence of alcohol, a drug of abuse, or a combination of them.
(2) The person’s whole blood, blood serum or plasma, breath, or urine contains a concentration of alcohol, a listed controlled substance, or a listed metabolite of a controlled substance prohibited for persons operating a vehicle, as specified in division (A) of section 4511.19 of the Revised Code, regardless of whether the person at the time of the transportation or possession as described in this division is the operator of or a passenger in the motor vehicle.