432.06  DRIVING UPON LEFT SIDE OF ROADWAY.
   (a)   No vehicle shall be driven upon the left side of the roadway under the following conditions:
      (1)   When approaching the crest of a grade or upon a curve in the highway, where the operator's view is obstructed within such a distance as to create a hazard in the event traffic might approach from the opposite direction;
      (2)   When the view is obstructed upon approaching within 100 feet of any bridge, viaduct, or tunnel; or
      (3)   When approaching within 100 feet of or traversing any intersection or railroad grade crossing.
   (b)   This section does not apply to vehicles upon a one-way roadway, upon a roadway where traffic is lawfully directed to be driven to the left side, or under the conditions described in Ohio R.C. 4511.25(A)(2) or a substantially similar municipal ordinance.
   (c)   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.
   (d)   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 § 408.02(b).
(ORC 4511.30)