ORC 3737.80

Additionally, Ohio Revised Code (ORC) 3737.80 designates the fire chief or designee as the person responsible for primary coordination of the on-scene activities during any emergency relating to hazardous materials.

This section clearly gives the fire chief the authority to issue an evacuation or SIP order to protect the public at any emergency involving the protection of life or property. This would include all time-limited acute health crises, with the exception of law enforcement actions.