BLS Certification Explained

BLS certification stands for Basic Life Support certification. It is a credential that shows you know how to perform CPR (cardiopulmonary resuscitation), use an automated external defibrillator (AED), and give first aid to someone whose heart has stopped or who is choking. The American Heart Association issues the most widely recognized BLS certification in the United States.

Healthcare employers — hospitals, clinics, ambulance services, nursing homes — often require BLS certification as a condition of hire. Some positions, like emergency room technician or paramedic, cannot legally be filled without it. Other roles, like medical assistant or phlebotomist, may not require it by law but employers prefer candidates who have it because it shows basic safety training.

BLS certification is different from CPR-only certification. CPR-only courses teach chest compressions and rescue breathing. BLS adds the use of AEDs, relief of choking, and how to recognize a cardiac emergency. The course takes about 6 to 8 hours and includes both classroom instruction and hands-on practice with mannequins.

Key Takeaways

  • BLS certification proves you can perform CPR, use an AED, and respond to choking — skills healthcare employers often require or strongly prefer.
  • The American Heart Association issues the standard BLS credential; other organizations offer similar training but may not be accepted by all employers.
  • You must pass a written test and demonstrate CPR technique on a mannequin to earn the certificate.
  • BLS certification is valid for two years; you must renew it before it expires if your job requires it.
  • Cost ranges from $50 to $150 depending on whether you take the course in person or online, and whether you choose a renewal or initial certification course.

Who Needs BLS Certification

Some healthcare roles legally require BLS certification before you can work. These include paramedics, emergency medical technicians (EMTs), nurses, and physicians. If the job posting says "BLS required," you cannot be hired without the credential, even if you have years of experience in another role.

Many other healthcare positions do not legally require BLS but employers list it as preferred or strongly preferred. Medical assistants, phlebotomists, dental hygienists, respiratory therapists, and operating room technicians often fall into this category. Having BLS certification makes your resume stronger and can speed up the hiring process.

Some non-healthcare jobs also value BLS certification. Fitness trainers, personal trainers, and coaches may pursue it because they work with people during physical exertion. Childcare workers and teachers sometimes get BLS certification to handle emergencies in their settings, though requirements vary by state and facility.

What the BLS Course Covers

A standard BLS course teaches you to recognize the signs of cardiac arrest, stroke, and choking. You learn the correct hand position and compression rate for CPR on adults, children, and infants. The course covers how to use an AED — when to turn it on, where to place the pads, and what to do after the shock is delivered.

You also learn relief techniques for choking, including the Heimlich maneuver for adults and back blows plus chest thrusts for infants. The course covers when to call 911, how to position an unconscious person, and the recovery position. Most courses include a section on the chain of survival — the sequence of actions that gives a person in cardiac arrest the best chance of recovery.

The hands-on portion requires you to perform CPR on a mannequin while an instructor watches. You must maintain the correct compression depth (at least 2 inches for adults), the correct rate (100 to 120 compressions per minute), and allow the chest to recoil fully between compressions. Instructors correct your technique in real time so you leave the course knowing what you did right and what to improve.

How to Get BLS Certification

You can take a BLS course through the American Heart Association directly, through hospitals and clinics that offer training, through community colleges, or through private training companies. Search "BLS certification near me" or visit the American Heart Association website to find courses in your area. Many courses fill up weeks in advance, so register early.

In-person courses are the most common option. You attend a class that lasts 6 to 8 hours — usually one full day or two half-days. You watch videos, practice on mannequins, and take a written test. Some providers offer blended courses where you watch videos online and attend a shorter in-person session for the hands-on portion and test.

Online-only BLS certification exists but is less common and not accepted by all employers. The American Heart Association offers an online component, but you still need to complete the hands-on skills test in person with an instructor. Some employers accept online renewal courses if you already hold a current BLS certificate, but initial certification almost always requires in-person practice.

The BLS Test and What You Need to Pass

The BLS certification test has two parts: a written exam and a skills demonstration. The written exam is usually 10 to 15 multiple-choice questions covering the material from the course. You must score at least 84 percent to pass. The test covers recognizing cardiac arrest, the correct CPR technique, AED use, and choking relief.

The skills test requires you to perform CPR on a mannequin while an instructor watches. You must perform at least two minutes of continuous CPR with correct hand position, compression depth, and rate. The instructor may ask you to demonstrate relief of choking or use of an AED. You do not need to be perfect, but you must show you understand the technique and can perform it safely.

If you do not pass the written exam on your first try, most providers let you retake it the same day. If you do not pass the skills test, you can usually practice more with the instructor and retake it before you leave. Failing both parts is rare if you attend the full course and pay attention during practice.

BLS Certificate Validity and Renewal

A BLS certificate is valid for two years from the date you pass the course. After two years, your certificate expires and you must renew it to maintain the credential. Many employers check expiration dates during hiring, and some will not hire you if your certificate has expired.

Renewal courses are shorter than initial certification courses — usually 4 to 6 hours instead of 6 to 8 hours. You do not repeat all the material, but you do review key skills and take a new written test and skills demonstration. Some providers offer renewal-only courses that cost less than initial certification courses.

If your certificate has been expired for more than a few months, some employers and training providers may require you to take a full initial course rather than a renewal course. Check with your employer or the training provider before you register to know which option you need.

Cost and Where to Find Courses

BLS certification costs between $50 and $150 for an initial course, depending on the provider and location. Renewal courses typically cost $40 to $100. Some hospitals offer free or discounted BLS training to their employees. Community colleges and fire departments sometimes offer lower-cost courses than private training companies.

The American Heart Association website has a course locator tool where you can enter your zip code and see all authorized providers near you. You can also search for "BLS certification [your city]" to find local options. Many courses can be booked online and you receive a confirmation email with the date, time, and location.

Some employers require you to use a specific training provider or accept only certain certifications. Before you register, check your job posting or ask the hiring manager which provider they prefer. The American Heart Association certification is accepted everywhere, but some employers may also accept certification from the Red Cross or other organizations.

Frequently Asked Questions

Do I need BLS certification if I am not a healthcare worker?

It depends on your job. Fitness trainers, personal trainers, coaches, and childcare workers sometimes need BLS certification, but requirements vary by employer and state. Check your job posting or ask the hiring manager. If it is not required, having BLS certification can still make you a stronger candidate.

Can I take BLS certification online?

You can take the classroom portion online, but you must complete the hands-on skills test in person with an instructor. Some providers offer blended courses where you watch videos at home and attend a shorter in-person session. Full online certification without any in-person component is not widely accepted by employers.

What happens if my BLS certificate expires?

Your certificate is no longer valid and you cannot use it on a job process. If your employer requires BLS certification, you must renew it before your certificate expires. If it has been expired for a short time, you can usually take a renewal course. If it has been expired for several months, you may need to take a full initial course instead.

How long does it take to get BLS certified?

A standard in-person course takes 6 to 8 hours, usually completed in one day or two half-days. You receive your certificate the same day if you pass the written test and skills demonstration. Blended courses may take longer because you complete the online portion on your own schedule before attending the in-person session.

Is American Heart Association BLS the only certification employers accept?

American Heart Association certification is the most widely accepted and recognized. The Red Cross also offers BLS certification that many employers accept. Some employers accept both; others prefer one over the other. Check your job posting or ask the employer which certification they prefer before you register for a course.