Ohio Rev. Code Ann. § 4511.19
(A)
(1) No person shall operate any vehicle, streetcar, or trackless trolley within this state, if, at the time of the operation, any of the following apply:
(j) Except as provided in division (K) of this section, the person has a concentration of any of the following controlled substances or metabolites of a controlled substance in the person's whole blood, blood serum or plasma, or urine that equals or exceeds any of the following:
(viii) Either of the following applies:
(2) No person who, within twenty years of the conduct described in division (A)(2)(a) of this section, previously has been convicted of or pleaded guilty to a violation of this division, a violation of division (A)(1) or (B) of this section, or any other equivalent offense shall do both of the following:
(B) No person under twenty-one years of age shall operate any vehicle, streetcar, or trackless trolley within this state, if, at the time of the operation, any of the following apply:
(D)
(1)
(4)
(b) In any criminal prosecution or juvenile court proceeding for a violation of division (A) or (B) of this section, of a municipal ordinance relating to operating a vehicle while under the influence of alcohol, a drug of abuse, or alcohol and a drug of abuse, or of a municipal ordinance relating to operating a vehicle with a prohibited concentration of alcohol, a controlled substance, or a metabolite of a controlled substance in the whole blood, blood serum or plasma, breath, or urine, if a law enforcement officer has administered a field sobriety test to the operator of the vehicle involved in the violation and if it is shown by clear and convincing evidence that the officer administered the test in substantial compliance with the testing standards for any reliable, credible, and generally accepted field sobriety tests that were in effect at the time the tests were administered, including, but not limited to, any testing standards then in effect that were set by the national highway traffic safety administration, all of the following apply:
(E)
(1) Subject to division (E)(3) of this section, in any criminal prosecution or juvenile court proceeding for a violation of division (A)(1)(b), (c), (d), (e), (f), (g), (h), (i), or (j) or (B)(1), (2), (3), or (4) of this section or for an equivalent offense that is substantially equivalent to any of those divisions, a laboratory report from any laboratory personnel issued a permit by the department of health authorizing an analysis as described in this division that contains an analysis of the whole blood, blood serum or plasma, breath, urine, or other bodily substance tested and that contains all of the information specified in this division shall be admitted as prima-facie evidence of the information and statements that the report contains. The laboratory report shall contain all of the following:
(G)
(1) Whoever violates any provision of divisions (A)(1)(a) to (i) or (A)(2) of this section is guilty of operating a vehicle under the influence of alcohol, a drug of abuse, or a combination of them. Whoever violates division (A)(1)(j) of this section is guilty of operating a vehicle while under the influence of a listed controlled substance or a listed metabolite of a controlled substance. The court shall sentence the offender for either offense under Chapter 2929. of the Revised Code, except as otherwise authorized or required by divisions (G)(1)(a) to (e) of this section:
(a) Except as otherwise provided in division (G)(1)(b), (c), (d), or (e) of this section, the offender is guilty of a misdemeanor of the first degree, and the court shall sentence the offender to all of the following:
(b) Except as otherwise provided in division (G)(1)(e) of this section, an offender who, within ten years of the offense, previously has been convicted of or pleaded guilty to one violation of division (A) or (B) of this section or one other equivalent offense is guilty of a misdemeanor of the first degree. The court shall sentence the offender to all of the following:
(c) Except as otherwise provided in division (G)(1)(e) of this section, an offender who, within ten years of the offense, previously has been convicted of or pleaded guilty to two violations of division (A) or (B) of this section or other equivalent offenses is guilty of a misdemeanor. The court shall sentence the offender to all of the following:
(d) Except as otherwise provided in division (G)(1)(e) of this section, an offender who, within ten years of the offense, previously has been convicted of or pleaded guilty to three or four violations of division (A) or (B) of this section or other equivalent offenses or an offender who, within twenty years of the offense, previously has been convicted of or pleaded guilty to five or more violations of that nature is guilty of a felony of the fourth degree. The court shall sentence the offender to all of the following:
(e) An offender who previously has been convicted of or pleaded guilty to a violation of division (A) of this section that was a felony, regardless of when the violation and the conviction or guilty plea occurred, is guilty of a felony of the third degree. The court shall sentence the offender to all of the following:
(5) Fines imposed under this section for a violation of division (A) of this section shall be distributed as follows:
(H) Whoever violates division (B) of this section is guilty of operating a vehicle after underage alcohol consumption and shall be punished as follows:
(I)
(K) Division (A)(1)(j) of this section does not apply to a person who operates a vehicle, streetcar, or trackless trolley while the person has a concentration of a listed controlled substance or a listed metabolite of a controlled substance in the person's whole blood, blood serum or plasma, or urine that equals or exceeds the amount specified in that division, if both of the following apply:
(N)