CPR certification is a skills-based credential that proves you can perform cardiopulmonary resuscitation. It is not a professional license or an academic degree. Instead, it falls into the category of competency certifications, meaning you demonstrate specific physical skills and pass a knowledge test to earn it. CPR certifications are issued by training organizations like the American Heart Association (AHA) and the American Red Cross, and they expire every two years.
What makes CPR certification unique is that it exists at multiple levels, from a basic credential any member of the public can earn in a few hours to advanced clinical certifications required for doctors, nurses, and paramedics. The level you need depends on whether you want it for personal knowledge, a workplace requirement, or a healthcare career.
General Public CPR Certification
The most common type is a standard CPR/AED certification designed for everyday people: parents, teachers, coaches, childcare providers, fitness trainers, and anyone who wants to be prepared for a cardiac emergency. The AHA calls its version “Heartsaver,” and courses typically cover CPR for adults, children, and infants, how to use an automated external defibrillator (AED), and how to help someone who is choking. Some versions bundle in general first aid training as well.
These courses teach you to compress the chest at a rate of 100 to 120 pushes per minute, to a depth of at least 2 inches for adults and about 1.5 inches for infants. You learn to give cycles of 30 compressions followed by 2 rescue breaths, each breath lasting about one second. If you’re unwilling or unable to give breaths, the certification also covers hands-only CPR, which relies on continuous chest compressions without mouth-to-mouth ventilation.
Courses run anywhere from a few hours to a full day depending on whether first aid is included. You can take them in person, or through a blended format where you study online and then complete a hands-on skills session with an instructor. That in-person skills check is important: the Red Cross specifically notes that fully online courses without a hands-on component do not count toward workplace certification requirements.
Basic Life Support for Healthcare Providers
Basic Life Support, or BLS, is the professional-grade version of CPR certification. It covers everything a standard CPR course does but adds clinical context that healthcare workers need. BLS training includes rapid patient assessment, responding to opioid overdoses, obstructed airway management for all age groups, communication and teamwork in emergency teams, legal considerations, and infection-control precautions.
BLS certification is typically required for doctors, nurses, nurse practitioners, EMTs, paramedics, dentists, dental hygienists, physical therapists, mental health professionals, home health aides, and nursing home staff. If you’re entering any healthcare field, BLS is almost always the minimum credential your employer or licensing board will expect. It’s also the prerequisite for more advanced certifications.
Advanced Clinical Certifications
Beyond BLS, two advanced certifications exist for healthcare professionals who manage cardiac emergencies in clinical settings.
ACLS (Advanced Cardiovascular Life Support) builds on BLS skills and teaches heart rhythm recognition, defibrillation, medication use during cardiac arrest, electrical cardioversion, and transcutaneous pacing. It also covers airway management techniques and how to function as part of a high-performance resuscitation team. An experienced-provider version goes deeper into toxicology emergencies, respiratory and metabolic crises, and post-cardiac arrest care. ACLS is commonly required for emergency physicians, cardiologists, anesthesiologists, ICU nurses, and paramedics.
PALS (Pediatric Advanced Life Support) focuses on resuscitation and emergency stabilization of infants and children. It’s geared toward providers who work in pediatric emergency departments, pediatric ICUs, and similar settings.
Specialized and Wilderness Certifications
Some environments call for CPR training adapted to unusual conditions. Wilderness First Aid (WFA) and Wilderness First Responder (WFR) certifications, offered by organizations like NOLS, prepare people to handle medical emergencies when professional help is hours or days away, gear is limited, and improvisation is necessary. CPR is a standard component of the longer WFR course, while shorter WFA courses sometimes offer CPR as an optional add-on session lasting about four hours.
These certifications are popular with outdoor guides, search-and-rescue volunteers, backcountry travelers, and anyone who works or recreates in remote areas where calling 911 won’t bring a quick response.
Who Issues CPR Certifications
The two dominant organizations are the American Heart Association and the American Red Cross. The AHA is the primary research body behind resuscitation science, and other organizations often base their curricula on AHA data and guidelines. The Red Cross develops its own training programs independently but follows the same core science. A third organization, the National Safety Council, also offers accredited CPR and first aid training.
For most purposes, certifications from any of these three organizations are interchangeable. Employers and licensing boards generally accept credentials from the AHA, Red Cross, or other nationally recognized providers. That said, some healthcare employers specifically require AHA certification, so it’s worth checking before you enroll.
How Long Certification Lasts
CPR certification is valid for two years regardless of the issuing organization or the level of certification. After that, you need to recertify. Renewal courses are shorter than initial training since they focus on refreshing your skills and updating you on any changes to resuscitation guidelines. The AHA publishes updated CPR and emergency cardiovascular care guidelines periodically, with the next major update scheduled for October 2025.
Recertification typically involves the same combination of knowledge review and hands-on skills demonstration as initial certification. The Red Cross offers renewal courses labeled “Review” or “Challenge” that cover the material in less time than a full course.
When CPR Certification Is Required
CPR certification is legally required in several industries and roles. OSHA mandates first aid and CPR training for workers in logging operations, and similar requirements apply to construction workers in certain situations, lifeguards, childcare providers, school staff in many states, and personal trainers at most gyms. Healthcare licensing boards require BLS at minimum for virtually all clinical roles.
Even when it’s not legally required, many employers in education, fitness, hospitality, and property management expect or prefer CPR-certified employees. For these workplace requirements, you need a certification that includes an in-person skills demonstration. A purely online awareness course, while useful for personal knowledge, won’t satisfy an employer’s compliance needs.