(A) (1) No pedestrian or driver of a vehicle shall disobey the instructions of any traffic-control device placed in accordance with the provisions of this traffic code, unless at the time otherwise directed by a police officer.
(2) No provision of this traffic code 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 traffic code does not state that signs are required, that section shall be effective even though no signs are erected or in place.
(ORC 4511.12(A))
(B) (1) Except as provided in division (C) below, any operator of a commercial motor vehicle, upon approaching a scale location established for the purpose of determining the weight of the vehicle and its load, shall comply with any traffic-control device or the order of a peace officer directing the vehicle to proceed to be weighed or otherwise inspected.
(2) Any operator of a commercial motor vehicle, upon bypassing a scale location in accordance with division (C) below, shall comply with an order of a peace officer to stop the vehicle to verify the use and operation of an electronic clearance device.
(C) Any operator of a commercial motor vehicle that is equipped with an electronic clearance device authorized by the Superintendent of the State Highway Patrol under Ohio R.C. 4549.081 may bypass a scale location, regardless of the instruction of a traffic-control device to enter the scale facility, if either of the following apply:
(1) The in-cab transponder displays a green light or other affirmative visual signal and also sounds an affirmative audible signal; and
(2) Any other criterion established by the Superintendent of the State Highway Patrol is met.
(D) Any peace officer may order the operator of a commercial motor vehicle that bypasses a scale location to stop the vehicle to verify the use and operation of an electronic clearance device.
(E) As used in this section,
COMMERCIAL MOTOR VEHICLE means any combination of vehicles with a gross vehicle weight rating or an actual gross vehicle weight of more than 10,000 pounds if the vehicle is used in interstate or intrastate commerce to transport property and also means any vehicle that is transporting hazardous materials for which placarding is required pursuant to 49 C.F.R. parts 100 to 180.
(ORC 4511.121(A)-(C), (E))
(F) No person shall use an electronic clearance device if the device or its use is not in compliance with rules of the Superintendent of the State Highway Patrol.
(ORC 4549.081(B))
(G) (1) Except as otherwise provided in this division, whoever violates division (A) above 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 division (A) above 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 division (A) above 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 § 303.99(B) of this code of ordinances.
(ORC 4511.12(B))
(2) Whoever violates division (B) above is guilty of a minor misdemeanor. If, within one year of the offense, the offender previously has been convicted of or pleaded guilty to a violation of division (B) above or any substantially equivalent state law or municipal ordinance, whoever violates division (B) above is guilty of a misdemeanor of the fourth degree. If, within one year of the offense, the offender previously has been convicted of or pleaded guilty to two or more violations of division (B) above or any substantially equivalent state law or municipal ordinance, whoever violates division (B) above 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 § 303.99(B) of this code of ordinances.
(ORC 4511.121(D))
(3) Whoever violates division (F) above is guilty of a misdemeanor of the fourth degree on a first offense and a misdemeanor of the third degree on each subsequent offense.
(ORC 4549.081(C))