AHA BLS Certification Explained

AHA BLS certification is a credential issued by the American Heart Association that shows you know how to perform cardiopulmonary resuscitation (CPR) and use an automated external defibrillator (AED) on adults, children, and infants. BLS stands for Basic Life Support. The certification is not a license to work in a specific job — it is a document that proves you have completed training and passed a test on life-saving techniques.

Healthcare workers, first responders, and people in many other professions are required to hold this certification as a condition of employment. Some workplaces require it even if the job does not directly involve patient care. The certification lasts for two years from the date you pass the course, after which you must renew it.

The American Heart Association is a nonprofit organization that sets the standards for CPR and emergency cardiovascular care. When you take an AHA BLS course, you are learning the techniques and protocols that the organization has developed based on current medical research.

Key Takeaways

  • AHA BLS certification proves you can perform CPR and use an AED on adults, children, and infants, and it is valid for two years.
  • Many healthcare employers, schools, and fitness facilities require staff to hold this certification before they can start work.
  • The course includes both classroom instruction and hands-on practice with mannequins, followed by a written test and skills test.
  • You can take the course in person at hospitals, training centers, and community colleges, or through online platforms that combine video instruction with in-person skills testing.
  • The cost ranges widely depending on the training provider, but typically falls between $60 and $200 for the initial course.

What You Learn in an AHA BLS Course

An AHA BLS course teaches you the step-by-step process for responding to a cardiac emergency. You learn how to recognize when someone is in cardiac arrest, how to call 911, how to position the person, and how to perform chest compressions at the correct rate and depth. The course covers CPR for three different age groups: adults, children (ages 1 to 8), and infants (under 1 year old), because the technique changes based on body size.

You also learn when and how to use an AED, which is a portable device that can detect an abnormal heart rhythm and deliver an electrical shock to restore normal rhythm. The course includes practice with training mannequins so you can feel the resistance of real chest compressions and get feedback on your technique. Most courses also cover how to recognize signs of a stroke, how to help someone who is choking, and how to respond to other medical emergencies.

The classroom portion typically lasts between 4 and 6 hours, depending on the provider and whether you are taking the course for the first time or renewing. The instructor will explain the science behind why CPR works and walk through each step with videos and demonstrations.

How the Testing Works

To earn your certification, you must pass both a written test and a skills test. The written test is usually multiple choice and covers the concepts taught in the course — for example, the correct compression rate for adult CPR or how to recognize when someone is choking. You typically need to answer at least 80 percent of the questions correctly to pass.

The skills test requires you to demonstrate CPR on a mannequin while an instructor watches. The instructor will check that you are performing compressions at the right speed (100 to 120 compressions per minute), pushing hard enough (at least 2 inches deep for adults), and allowing the chest to recoil fully between compressions. You will also be asked to demonstrate how to use an AED and how to perform rescue breathing if the course includes that component.

If you do not pass on your first attempt, most providers will let you retake the test the same day or schedule a retest within a short time frame. You do not have to repeat the entire course if you only failed the skills test.

Where to Take an AHA BLS Course

You can take an AHA BLS course at hospitals, urgent care centers, fire departments, community colleges, and private training companies. Many of these organizations offer courses on a regular schedule — often weekly or monthly — so you can find a time that works for you. Some courses are offered during the day, others in the evening or on weekends.

Online options have become more common in recent years. Some providers offer a blended model where you watch instructional videos online and then come in person for the skills test and written exam. This can save time if you live far from a training center or have a busy schedule. However, the American Heart Association requires that the skills portion be done in person with an instructor present, so you cannot complete the entire course online.

The cost varies by provider. Hospital-based courses may cost $60 to $100, while private training companies might charge $100 to $200. Some employers cover the cost for their staff, so check with your workplace before paying out of pocket.

Who Needs AHA BLS Certification

Healthcare workers — including nurses, doctors, paramedics, and emergency medical technicians — are almost always required to hold AHA BLS certification. Many hospitals will not hire someone without it, and some require you to obtain it within the first few weeks of employment if you do not already have it.

Fitness professionals, personal trainers, and staff at gyms and swimming pools often need this certification as well. Schools may require it for coaches, physical education teachers, and school nurses. Childcare centers and preschools frequently require staff to be certified. Some dental offices, veterinary clinics, and other healthcare settings also require it.

Even if your job does not directly involve medical care, your employer might still require the certification as part of a workplace safety program. Check your job description or employee handbook, or ask your supervisor whether you need it.

Renewing Your Certification

Your AHA BLS certification is valid for two years from the date you pass the course. Before it expires, you can take a renewal course, which is shorter than the initial course — usually 1 to 2 hours instead of 4 to 6 hours. The renewal course covers updates to CPR guidelines and gives you a chance to practice the skills again, but it assumes you already know the basics.

Some providers offer renewal courses on the same schedule as initial courses, while others dedicate specific sessions to renewals. You can renew your certification at any point during the two-year window, not just right before it expires. If your certification lapses, you will need to take the full initial course again rather than a renewal course.

Many employers will remind you when your certification is about to expire, or they may require you to renew it by a certain date. If you work in healthcare or another field where certification is mandatory, letting it lapse could affect your employment.

Frequently Asked Questions

Is AHA BLS certification the same as CPR certification?

AHA BLS certification includes CPR training, but it covers more than just CPR. It also includes training on using an AED, recognizing stroke, and responding to choking and other emergencies. Some organizations offer CPR-only courses that do not include the full BLS curriculum, so check what the course covers before you sign up.

Can I take an AHA BLS course online?

You can complete the classroom portion online through some providers, but the skills test and written exam must be done in person with an instructor. The American Heart Association requires hands-on evaluation to may support you can perform CPR correctly. Some providers offer blended courses where you watch videos at home and then attend a short in-person session for testing.

How long does it take to get certified?

An initial AHA BLS course typically takes 4 to 6 hours to complete, including instruction, practice, and testing. If you choose a blended online option, you might spread the classroom portion over several days and then attend an in-person session for the skills test. A renewal course is faster — usually 1 to 2 hours.

What happens if I fail the skills test?

Most providers allow you to retake the skills test the same day or within a few days at no extra charge. You do not have to repeat the entire course. If you fail the written test, you can usually retake that as well. If you fail multiple times, some providers may ask you to repeat the full course before trying again.

Do I need to renew my certification if I do not use it at work?

If your employer requires the certification, you must renew it to keep your job. If you took the course voluntarily and do not work in a field that requires it, you do not have to renew it. However, CPR guidelines change periodically, so taking a renewal course ensures you know the most current techniques if you ever need to use CPR in an emergency.