(a) At an employer's request, an employee, acting as a volunteer emergency responder, who is absent from his or her place of employment in order to respond to an emergency shall provide his or her employer, within 7 days of such request, a written statement signed by the individual in charge of the volunteer department or another individual authorized to act for such individual that includes the following:
(b) At an employer's request, an employee, who is absent from his or her place of employment due to injury sustained by such employee while responding to an emergency shall provide his or her employer, within 5 days of such request, a written statement signed by the relevant medical professional or another individual authorized to act for such medical professional that includes the following: