Ohio Revised Code

Ohio Rev. Code § 4511.12 (2026)

Obedience to traffic control devices

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(A) No pedestrian, driver of a vehicle, or operator of a streetcar or trackless trolley shall disobey the instructions of any traffic control device placed in accordance with this chapter, unless at the time otherwise directed by a police officer.

No provision of this chapter for which signs are required shall be enforced against an alleged violator if at the time and place of the alleged violation an official sign is not in proper position and sufficiently legible to be seen by an ordinarily observant person. Whenever a particular section of this chapter does not state that signs are required, that section shall be effective even though no signs are erected or in place.

(B) Except as otherwise provided in this division, whoever violates this section is guilty of a minor misdemeanor. If, within one year of the offense, the offender previously has been convicted of or pleaded guilty to one predicate motor vehicle or traffic offense, whoever violates this section is guilty of a misdemeanor of the fourth degree. If, within one year of the offense, the offender previously has been convicted of two or more predicate motor vehicle or traffic offenses, whoever violates this section is guilty of a misdemeanor of the third degree.

If the offender commits the offense while distracted and the distracting activity is a contributing factor to the commission of the offense, the offender is subject to the additional fine established under section 4511.991 of the Revised Code.

Notes of Decisions
Cited in 61 cases (10 in the last 5 years), 1955–2026 · leading case: State v. Delevie, 2019-Ohio-3563.
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State v. Delevie, 2019-Ohio-3563. · cites it 8× “) with one count of traffic control devices pursuant to R.C. 4511.12 and one count of turn signal violation pursuant to R.”
State v. Turner (Slip Opinion), 2020-Ohio-6773, 170 N.E.3d 842. · cites it 4× “See R.C. 4511.12. {¶ 34} R.C. 4511.27 governs the overtaking and passing of vehicles proceeding in the same direction.”
Parma Hts. v. Dedejczyk, 2012-Ohio-3458. · cites it 6× “19(A)(1)(d), (3) failure to obey a traffic control device in violation of R.C. 4511.12, and (4) making an improper turn in violation of R.”
White v. Ohio Dep't of Transp., 564 N.E.2d 462 (Ohio 1990). · cites it 4× “B Statutory Excuse for Failure to Stop The Klyza estate argues, and the court below agreed, that R.C. 4511.12 potentially excuses the estate from civil liability.”
City of Maple Heights v. Smith, 722 N.E.2d 607 (Ohio Ct. App. 8th Dist. 1999). · cites it 5× “Defendant’s sole assignment of error states as follows: “The trial court committed reversible error when it convicted appellant where the traffic control sign was not in conformity with the Ohio Manual of Uniform Traffic Control Devices and R.C. 4511.12.” R.C. 4511.09…”
State v. Hill, 2024-Ohio-522. · cites it 2× “19(A)(1)(a), and a violation of R.C. 4511.12, disobeying a traffic control device.”
City of Lyndhurst v. McGinness, 741 N.E.2d 976 (Ohio Ct. App. 8th Dist. 2000). · cites it 3× “12 requires a driver of a vehicle to obey all traffic control devices, except such devices as are not properly positioned and sufficiently legible to be seen by ordinary observant persons. The record contains pictures of the signs in question.”
In re Tolliver, 777 N.E.2d 867 (Ohio Ct. App. 5th Dist. 2002). · cites it 3× “{¶ 1} On July 12, 2001, appellant, John Tolliver, a juvenile, was cited for failing to stop at a stop sign in violation of R.C. 4511.12. An adjudicatory hearing before a magistrate was held in Muskingum County, Ohio, on December 3, 2001.”
State v. Holland, 2012-Ohio-486. · cites it 2× “19(A)(2); and Failure to Obey a Traffic Control Device, a minor misdemeanor in violation of R.C. §4511.12. {¶6} On April 28, 2011, a trial by jury was held in this matter.”
In re H.C., 2019-Ohio-441. · cites it 5× “02 and R.C. 4511.12. The trial court proceeded to the dispositional phase, noting that this was H.”
State v. Burke, 2013-Ohio-2888. · cites it 2× “, a stop sign, while driving a vehicle, in violation of R.C. 4511.12. At a bench trial, Trooper Eric Knowlton with the Ohio State Highway Patrol testified that while on patrol in Washington County, he saw a vehicle stopped at a stop sign on Market Street and saw a second vehicle…”
State v. South, 832 N.E.2d 1222 (Ohio Ct. App. 9th Dist. 2005). “02, a first-degree misdemeanor; and one count of failure to obey a stop sign in violation of R.C. 4511.12, a minor misdemeanor. South pleaded not guilty and sought discovery under Crim.”
Show all 61 citing cases →
Ohio Rev. Code § 4511.12(A): 18 cases
Parma Hts. v. Dedejczyk, 2012-Ohio-3458. “19(A)(1)(d), (3) failure to obey a traffic control device in violation of R.C. 4511.12, and (4) making an improper turn in violation of R.”
State v. Turner (Slip Opinion), 2020-Ohio-6773, 170 N.E.3d 842. “See R.C. 4511.12. {¶ 34} R.C. 4511.27 governs the overtaking and passing of vehicles proceeding in the same direction.”
State v. Delevie, 2019-Ohio-3563. “) with one count of traffic control devices pursuant to R.C. 4511.12 and one count of turn signal violation pursuant to R.”
State v. Clark, 2018-Ohio-2029, 101 N.E.3d 758.
In re T.B., 2026-Ohio-1309.
Ohio Rev. Code § 4511.12(A)(1)(a): 1 case
State v. Tucker, 2023-Ohio-2894.
Ohio Rev. Code § 4511.12(A)(B): 1 case
State v. Kiger, 2018-Ohio-592, 105 N.E.3d 751.
Ohio Rev. Code § 4511.12(D)(5): 1 case
State v. Clark, 2025-Ohio-1886.
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