Ohio Rev. Code § 3115.301: Proceedings under act.

(A) Except as otherwise provided in this chapter, sections 3115.301 to 3115.319 of the Revised Code apply to all proceedings under this chapter.

(B) An individual petitioner or a support enforcement agency may initiate a proceeding authorized under this chapter by filing a petition in an initiating tribunal for forwarding to a responding tribunal or by filing a petition or a comparable pleading directly in a tribunal of another state or a foreign country that has or can obtain personal jurisdiction over the respondent.