Ohio Rev. Code Ann. § 4506.01
As used in this chapter:
(A) "Alcohol concentration" means the concentration of alcohol in a person's blood, breath, or urine. When expressed as a percentage, it means grams of alcohol per the following:
(D) Except when used in section 4506.25 of the Revised Code, "commercial motor vehicle" means any motor vehicle designed or used to transport persons or property that meets any of the following qualifications:
(E) "Controlled substance" means all of the following:
(G) "Disqualification" means any of the following:
(I) "Downgrade" means any of the following, as applicable:
(Y) "Medical variance" means one of the following received by a driver from the federal motor carrier safety administration that allows the driver to be issued a medical certificate:
(II) "Serious traffic violation" means any of the following:
(2)
(a) Except as provided in division (II)(2)(b) of this section, a violation while operating a commercial motor vehicle of a law of this state, or any municipal ordinance or county or township resolution, or any other substantially similar law of another state or political subdivision of another state prohibiting either of the following:
(3) A conviction arising from the operation of any motor vehicle that involves any of the following:
(g) Violation of any other law of this state, any law of another state, or any ordinance or resolution of a political subdivision of this state or another state that meets both of the following requirements:
(MM) "Texting" means manually entering alphanumeric text into, or reading text from, an electronic device. Texting includes short message service, e-mail, instant messaging, a command or request to access a world wide web page, pressing more than a single button to initiate or terminate a voice communication using a mobile telephone, or engaging in any other form of electronic text retrieval or entry, for present or future communication. Texting does not include the following:
(QQ) "Use of a handheld mobile telephone" means: