BLS (Basic Life Support) is a professional-level certification, not just a general CPR class. It is specifically designed for healthcare providers and other professionals who may need to respond to cardiac and respiratory emergencies as part of their job. While it covers CPR, it goes well beyond what a standard CPR course teaches, adding clinical skills like multi-rescuer coordination, bag-mask ventilation, and structured patient assessment.
How BLS Differs From Standard CPR
A basic CPR class teaches you how to perform chest compressions, use an AED, and help someone who is choking. That’s enough for bystanders and non-medical personnel. BLS certification covers all of that plus a layer of skills that healthcare workers need: rapid patient assessment, team-based resuscitation with multiple rescuers, airway management techniques, opioid overdose response, and communication protocols used in clinical settings.
BLS courses also cover legal considerations, infection control precautions, and how to integrate with the broader emergency medical services system. The American Red Cross describes BLS as including “critical thinking, problem solving, communication and teamwork” alongside the hands-on skills. In short, CPR teaches you to keep someone alive until help arrives. BLS teaches you to be the help that arrives.
Who Needs BLS Certification
BLS is a standard requirement for nurses, paramedics, EMTs, physicians, dentists, respiratory therapists, physical therapists, and many other healthcare roles. Most hospitals and clinics will not hire clinical staff without a current BLS card, and many require it before your first day on the job. Nursing schools, medical schools, and allied health programs also require BLS certification before students begin clinical rotations.
Outside of healthcare, some employers in industries like fitness training, lifeguarding, and childcare require or prefer BLS over a basic CPR certificate. OSHA recommends that every workplace have at least one employee trained in first aid and CPR, and certain industries, including logging and electric power, have mandatory first aid training requirements. While OSHA does not specifically mandate BLS by name, many employers in higher-risk settings choose it as their standard.
Who Issues BLS Certification
The two most widely recognized providers are the American Heart Association (AHA) and the American Red Cross. Both offer in-person, blended (online plus in-person skills check), and fully online didactic components. Most employers accept certification from either organization, though some hospitals and health systems specify one over the other in their hiring policies. If you’re getting certified for a specific job, check which provider your employer recognizes before enrolling.
Other organizations also offer BLS training, but cards from lesser-known providers may not be accepted by hospitals or licensing boards. Sticking with the AHA or Red Cross is the safest bet for professional use.
What the Course Involves
A BLS course typically takes four to five hours for initial certification. You’ll learn and practice chest compressions on adult, child, and infant manikins, with specific performance standards: compressions must reach at least two inches deep, at a rate that fits 30 compressions into 15 to 18 seconds, with full chest recoil between each one. You’ll also practice delivering rescue breaths using a barrier device, with each breath lasting about one second and producing visible chest rise.
The course includes hands-on AED practice, where you power on the device, attach pads, clear the patient, and deliver a shock safely. A multi-rescuer scenario is part of the skills test, requiring you to coordinate a handoff with another provider and manage roles during a resuscitation. At the end of the course, you complete a written exam and a practical skills test. Both must be passed to earn certification.
Cost and Renewal
BLS certification is relatively inexpensive. The AHA’s online didactic portion (HeartCode BLS) costs $37, and you’ll pay an additional fee for the in-person skills session, which varies by training site. The total typically falls between $50 and $80. The provider card itself costs $3.50 as a digital eCard. Many employers cover or reimburse BLS costs for their staff, though this varies.
Certification lasts two years. To renew, you take a shorter recertification course that refreshes your skills and extends your card for another two-year cycle. You need to renew before your certification expires or within 30 days after expiration. If you let it lapse beyond that window, you’ll need to retake the full initial course.
Where BLS Fits in the Certification Hierarchy
BLS is the foundational level of professional resuscitation training. It serves as a prerequisite for more advanced certifications. Advanced Cardiovascular Life Support (ACLS) builds on BLS by adding skills like IV access, medication administration, cardiac rhythm interpretation, and electrical therapies beyond basic defibrillation. Pediatric Advanced Life Support (PALS) does the same for pediatric emergencies. You cannot take ACLS or PALS without holding a current BLS certification first.
For most clinical roles, BLS alone is sufficient. ACLS is typically required for physicians, nurses working in emergency departments or intensive care units, and paramedics. If your job requires ACLS or PALS, you’ll still need to maintain your BLS certification separately, since it expires and renews on its own cycle.