Ohio Rev. Code § 5911.07
The armories erected by the state are for the use of the organized militia; but in each armory there may be provided and maintained, except as provided in this section, a suitable room including heating, lighting, and janitor services, for the free use of patriotic and national organizations chartered under part B of subtitle II of Title 36 of the United States Code, unless such rooms are already provided by the erection of a county memorial building or otherwise by the state, or by the county, township, or municipal corporation. This section does not require a separate room to be maintained for each organization. The room provided in this section may be used for military training when not in actual use by one of the aforenamed organizations. This section applies only during the time that such armory is being used by a unit of the organized militia.
R.C. § 5911.07