Ohio Rev. Code Ann. § 5741.01
As used in this chapter:
(G)
(I) "Substantial nexus with this state" means that the seller has sufficient contact with this state, in accordance with Section 8 of Article I of the Constitution of the United States, to allow the state to require the seller to collect and remit use tax on sales of tangible personal property or services made to consumers in this state. "Substantial nexus with this state" exists when the seller does any of the following: