Emergency Response:

63-6-218.

(b) Any person, including those licensed to practice medicine and surgery and including any person licensed or certified to render service ancillary thereto, or any member of a volunteer first aid, rescue or emergency squad that provides emergency public first aid and rescue services, who in good faith:

(1) Renders emergency care at the scene of an accident, medical emergency and/or disaster, while en route from such scene to a medical facility and while assisting medical personnel at the receiving medical facility, including use of an automated external defibrillator, to the victim or victims thereof without making any direct charge for the emergency care; or

Automatic External Defibrillator:

63-6-218.

(b) Any person, including those licensed to practice medicine and surgery and including any person licensed or certified to render service ancillary thereto, or any member of a volunteer first aid, rescue or emergency squad that provides emergency public first aid and rescue services, who in good faith:

(2) Participates or assists in rendering emergency care, including use of an automated external defibrillator, to persons attending or participating in performances, exhibitions, banquets, sporting events, religious or other gatherings open to the general public, with or without an admission charge, whether or not such emergency care is made available as a service, planned in advance by the promoter of the event and/or any other person or association, shall not be liable to such victims or persons receiving emergency care for any civil damages as a result of any act or omission by such person in rendering the emergency care, or as a result of any act or failure to act to provide or arrange for further medical treatment or care for the injured person, except such damages as may result from the gross negligence of the person rendering such emergency care.

http://www.tn.gov/sos/acts/102/pub/pc0589.pdf