Next CLS Testing Window

Spring 2018 Testing Window

March 19, 2018 - April 30, 2018

Application Deadline:
Friday, March 9, 2018

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CLS Renewal of Certification (ROC)

The ACCL requires that all CLS participate in ROC every 10 years to maintain active status. Those certified in 2007 have been provided with a 1 year extension to apply. If you were certified in 2007or 2008, the application deadline to apply is October 1, 2018.

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CLS Certification
Recognized by ACC

The CLS certification is now recognized by the American College of Cardiology as qualifying criteria to become an Associate of the American College of Cardiology (AACC), a distinguished designation honoring those with advanced training and education in the field of Cardiology.

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CLS Certification Featured on Today's Dietitian

Learn more about this certification and why RDNs should pursue it.

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Frequently Asked Questions

  1. Is the CLS examination difficult? What is the pass rate?
  2. How long is my CLS credential active?
  3. Are there courses or reference materials to assist in preparation for the examination?
  4. Where do I take the exam?
  5. What if I must reschedule my exam date?
  6. How quickly will I receive results?
  7. What if I fail?

1.) Is the CLS examination difficult? What is the pass rate?

Many Diplomates say it is one of the more rigorous exams they have taken. The pass rate ranges from 80–85%.


2.) How long is my CLS credential active?

The CLS credential is valid for 10 years. Renewal of certification (ROC) is required for continued use of the Accreditation Council for Clinical Lipidology’s (ACCL) Clinical Lipid Specialist (CLS) credential. For specific information regarding the Renewal process, visit www.lipidspecialist.org/roc.


3.) Are there courses or reference materials to assist in preparation for the examination?

Continuing Education

The National Lipid Association (NLA) offers a lifelong learning program that paves the way for professional development and recognition of the distinct and specialized knowledge required of Clinical Lipidologists. Lipidology is an evolving field that requires clinicians to stay abreast of the latest clinical research and treatment guidelines and to apply this knowledge in practice. The NLA has developed educational activities at all levels of competency and provides continuous clinical updates, opportunities for self-assessment and practice improvement.

Please visit www.lipid.org/education to find out more information about these continuing education activities.

More information about preparation materials is available on our Resources page.

For the Clinical Lipid Specialist "CLS" Exam:

The NLA Self-Assessment Program (NLA-SAP), Lipid Academy Course and Masters in Lipidology Course are utilized by the majority of our applicants to prepare and earn CME/CE credit toward sitting for the exam. For those with significant experience in lipid management, the Masters in Lipidology Course should be suitable preparation for the CLS exam. For those who are newer to the field, participation first in the Lipid Academy and then the Masters course would be suggested. The CME/CE credit hours earned from participating in these activities will help you to meet the CLS credentialing criteria.

Please visit www.lipid.org/education to find out more information about these continuing education activities.

More information about preparation materials is available on our Resources page.


4.) Where do I take the exam?

The CLS and LCC exams are offered via Online Proctoring through our vendor Webassessor. This allows exam candidates to complete the exam from work or home while guaranteeing exam integrity. Candidates must have a web camera and internet connection to take the exam. A certified proctor will deliver the exam and ensure improper resources are not used during the examination.


5.) What if I must reschedule my exam date?

If you need to cancel or change your testing times you must notify us more than 72 hours before your actual exam time. If you cancel after the 72 hours regardless of reasoning, there is an additional $95.00 seating fee that will be charged back to you. No exceptions. Please take this into consideration when choosing your test date/time.


6.) How quickly will I receive results?

You can expect to receive your score report within 4 weeks of the close of the testing window. Exam results are confidential and will only be released in writing to the registered examinee.


7.) What if I fail?

The CLS exam may be taken up to 4 times upon filing a new application/re-application. If a candidate fails four examinations, eligibility is withheld for a period of two years. The CLS retake fee is $250. Please see our complete policy on retakes here.