Emergency Response:

Section 15-1-310.

Any person, who in good faith gratuitously renders emergency care at the scene of an accident or emergency to the victim thereof, shall not be liable for any civil damages for any personal injury 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 acts or omissions amounting to gross negligence or willful or wanton misconduct.

Automatic External Defibrillator:

SECTION 44-76-40.

(1) Any person or entity acting in good faith and gratuitously shall be immune from civil liability for the application of an AED unless the person was grossly negligent in the application.

(2) Any designated AED users meeting the requirements of Section 44-76-30(1) and acting according to the required training shall be immune from civil liability for the application of an AED unless the application was grossly negligent.

(3) A person or entity acquiring an AED and meeting the requirements of Section 44-76-30 or an AED liaison meeting the requirements of Section 44-76-30 shall be immune from civil liability for the application of an AED by any person or entity described in items (1) or (2) of this section.

(4) A prescribing physician shall be immune from civil liability for authorizing the purchase of an AED, unless the authorization was grossly negligent.

(5) Any person or entity, acting in good faith and gratuitously, that teaches or provides a training program for cardiopulmonary resuscitation that includes training in the use of an automated external defibrillator is immune from civil liability for providing this training for use if the:

(a) person or entity has provided the training in accordance with the guidelines and policies of a national training organization, as defined in Section 44-76-30(1);

(b) person providing the training is authorized to deliver that course or curriculum; and

(c) training delivery was not grossly negligent.

http://www.scstatehouse.gov/code/t15c001.php