(A) There is hereby established within the department of public safety an emergency management agency, which shall be governed under rules adopted by the director of public safety under section 5502.25 of the Revised Code. The director, with the concurrence of the governor, shall appoint an executive director, who shall be head of the emergency management agency. The executive director may appoint a chief executive assistant, executive assistants, and administrative and technical personnel within that agency as may be necessary to plan, organize, and maintain emergency management adequate to the needs of the state. The executive director shall coordinate all activities of all agencies for emergency management within the state, shall maintain liaison with similar agencies of other states and of the federal government, shall cooperate with those agencies subject to the approval of the governor, and shall develop a statewide emergency operations plan that shall meet any applicable federal requirements for such plans. The executive director shall have such additional authority, duties, and responsibilities as are prescribed by the governor and the director or provided by law in all matters relating to emergency management that may be reflected in other sections of the Revised Code. The executive director shall advise the governor and director on matters pertaining to emergency management on a regular basis. Whenever the disaster services agency or director is referred to or designated in any statute, rule, contract, or other document, the reference or designation shall be deemed to refer to the emergency management agency or executive director, as the case may be.