Ohio Revised Code Title XXXVII. Health Safety Morals § 3737.52

(1) “Class B firefighting foam” means a foam that is designed to extinguish a fire caused by flammable liquid.

(2) “PFAS chemicals” means a class of fluorinated organic chemicals containing at least one fully fluorinated carbon atom, including perfluoroalkyl and polyfluoroalkyl substances, that are designed to be fully functional in class B firefighting foam formulations.

(3) “Testing” includes calibration testing, conformance testing, and fixed system testing.

(C)(1) Except as provided in division (C)(2) of this section, no person shall use a class B firefighting foam containing intentionally added PFAS chemicals for testing purposes.

(2) A person may use a class B firefighting foam containing intentionally added PFAS chemicals for testing purposes if required by law, regulation, or ordinance and the testing facility has implemented appropriate containment, treatment, and disposal measures to prevent releases of the class B firefighting foam into the environment.

(1) The manufacture, sale, or distribution of class B firefighting foam containing intentionally added PFAS chemicals.

(2) The use of class B firefighting foam containing intentionally added PFAS chemicals in emergency firefighting or fire prevention operations.