Ohio Revised Code Title XXIII. Courts Common Pleas § 2305.091

(A) An action to obtain a judgment for any of the following shall be brought by a board of education of any school district within four years after the cause of action accrues in accordance with division (B) of this section:

(B) A cause of action for any removal, measures, or reimbursement described in divisions (A)(1) to (4) of this section accrues upon the date that the board of education is informed by an official of a state, county, or local health department or of the United States environmental protection agency, the Ohio environmental protection agency, or the industrial commission who has conducted an inspection for asbestos or who has received test data concerning asbestos located in a building or other structure that is owned by the board of education, that asbestos or materials that contain asbestos in any building or other structure that is owned by the board of education should be removed from the building or other structure or be encapsulated or otherwise maintained because the asbestos poses a health hazard or risk to persons who use the building or other structure.

(C) This section applies to asbestos, and material that contains asbestos, that is or was installed in a building or other structure prior to, on, or after the effective date of this section.