CPR Experts are medical professionals who are trained to provide cardiopulmonary resuscitation (CPR) in emergency situations. The two most common types of CPR Experts are Advanced Cardiac Life Support (ACLS) providers, also known as ACTS, and Emergency Medical Technicians (EMTs), also known as EMTS. ACTS are healthcare professionals who have completed a course in advanced cardiac life support and are certified to provide advanced life support in emergency situations. EMTS are healthcare professionals who have completed a course in emergency medical technology and are certified to provide basic life support in emergency situations.