Ohio Rev. Code § 5145.01
Courts shall impose sentences to a state correctional institution for felonies pursuant to sections 2929.13 and 2929.14 of the Revised Code. All prison terms may be ended in the manner provided by law, but no prison term shall exceed the maximum term provided for the felony of which the prisoner was convicted as extended pursuant to section 2929.141 or 2967.28 of the Revised Code.
If a prisoner is sentenced for two or more separate felonies, the prisoner's term of imprisonment shall run as a concurrent sentence, except if the consecutive sentence provisions of sections 2929.14 and 2929.41 of the Revised Code apply. If sentenced consecutively, for the purposes of sections 5145.01 to 5145.27 of the Revised Code, the prisoner shall be held to be serving one continuous term of imprisonment.
If a court imposes a sentence to a state correctional institution for a felony of the fourth or fifth degree, the department of rehabilitation and correction, notwithstanding the court's designation of a state correctional institution as the place of service of the sentence, may designate that the person sentenced is to be housed in a county, multicounty, municipal, municipal-county, or multicounty-municipal jail or workhouse if authorized pursuant to section 5120.161 of the Revised Code.
If, through oversight or otherwise, a person is sentenced to a state correctional institution under a definite term for an offense for which a definite term of imprisonment is not provided by statute, the sentence shall not thereby become void, but the person shall be subject to the liabilities of such sections and receive the benefits thereof, as if the person had been sentenced in the manner required by this section.
As used in this section, "prison term" has the same meaning as in section 2929.01 of the Revised Code.
R.C. § 5145.01