Ohio Revised Code Title XXXIII. Education Libraries § 3319.10

Teachers may be employed as substitute teachers for terms not to exceed one year for assignment as services are needed to take the place of regular teachers absent on account of illness or on leaves of absence or to fill temporarily positions created by emergencies; such assignment to be subject to termination when such services no longer are needed.

A teacher employed as a substitute with an assignment to one specific teaching position shall after sixty days of service be granted sick leave, visiting days, and other local privileges granted to regular teachers including a salary not less than the minimum salary on the current adopted salary schedule.

A teacher employed as a substitute for one hundred twenty days or more during a school year and re-employed for or assigned to a specific teaching position for the succeeding year shall receive a contract as a regular teacher if the substitute meets the local educational requirements for the employment of regular teachers.

Teachers employed as substitutes on a casual or day-to-day basis shall not be entitled to the notice of nonre-employment prescribed in section 3311.81 or 3319.11 of the Revised Code, but boards of education may grant such teachers sick leave and other local privileges and cumulate such service in determining seniority.

For purposes of determining in any school year the days of service of a substitute teacher under this section, any teacher's days of service in that school year while conditionally employed as a substitute teacher under section 3319.101 of the Revised Code shall count as days of service as a substitute teacher under this section.