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American Board of Clinical Chemistry

American Board of Clinical Chemistry (ABCC) is a not-for-profit organization, incorporated in 1950, devoted to certification of individuals with doctoral level degrees in the practice of clinical chemistry, toxicological chemistry, and other clinical laboratory medicine disciplines. In purpose, function, and organization the ABCC is analogous to the certifying boards in various medical specialties. The aim of the Board is to serve the public interest and advance the science by establishing standards of competence for those who practice clinical laboratory medicine, and to certify as Diplomates those qualified specialists who comply with the requirements of the Board.

Why Should You Be Certified By American Board of Clinical Chemistry?

Certification by American Board of Clinical Chemistry satisfies the personnel requirements of CLIA ’88 regulations to serve as the director of a high complexity clinical laboratory and clinical consultant in laboratory medicine. Certifications are available in Clinical Chemistry, Toxicological Chemistry, and Molecular Diagnostics.

  • Clinical Chemistry: The examination in Clinical Chemistry tests the candidate’s Recall and Applied skills and is comprised of two parts: A) Calculations & Problem Solving, and B) Analytical & Clinical Issues.
  • Toxicological Chemistry:The examination in Toxicological Chemistry tests the candidate’s Recall and Applied skills and is comprised of two parts: A) Calculations & Problem Solving, and B) Analytical, Toxicological and Therapeutic Drug Monitoring Issues.
  • Molecular Diagnostics:The examination in Molecular Diagnostics tests the candidate’s Recall and Applied skills and is comprised of one part.

Apply Now for Certification by American Board of Clinical Chemistry!

Certification by American Board of Clinical Chemistry satisfies the personnel requirements of CLIA ’88 regulations to serve as the director of a high complexity clinical laboratory and clinical consultant in laboratory medicine. Certifications are available in Clinical Chemistry, Toxicological Chemistry, and Molecular Diagnostics.

The applicant shall be of good moral character and high ethical and professional standing. Specific requirements for the application, candidacy, and exams follow.

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The applicant must hold an earned doctoral degree (PhD) in a chemical, physical, biological or clinical laboratory science or an MD, DO, DPM, or DMD degree from an appropriately accredited university or college acceptable to the Board.

The applicant must have satisfactorily completed a minimum of 30 semester hours (or equivalent) of undergraduate and/or graduate level courses taken at institutions acceptable to the Board that meet the combined criteria established by each of the ABCC certification disciplines as shown in Table 1 and Table 2. To demonstrate successful completion of the required semester hours, applicants must submit official transcripts from their undergraduate and graduate institutions, that are sent directly from the institutions to ABCC. Applicants cannot submit their own transcripts.

Applicants with education obtained at institutions outside the United States or Canada must also, at their own expense, have their credentials evaluated by the International Education Research Foundations, Inc., or similar credentialing agency.

The Credentials Committee will evaluate completed application materials submitted by prospective examinees to determine whether they meet established criteria to sit for the chosen exam. An applicant will become a “Candidate” for exam when the board or its committees are satisfied that the requirements for admission have been met. The candidate for the exam will be notified at least 45 days prior to an upcoming exam period.

In order to become an ABCC diplomate, the Candidate must pass all required exam parts within the 3-year eligibility period. Candidates may only attempt an exam part twice within an eligibility period. This eligibility period will end after 3 years OR once a Candidate fails an exam part twice, whichever comes first. Details on the exam passing requirements include:

  • Successfully pass all required exam parts as defined in the specialty within the 3-year eligibility period. Visit the Certifications page for details on the parts of each specialty (Clinical Chemistry, Molecular Diagnostics, and Toxicological Chemistry). All exam parts must be successfully passed with a 3-year period.
  • The 3-year eligibility period begins on the exam period immediately following the determination of an Applicant to become a Candidate. The eligibility period will begin the immediate following exam period following the determination that an Applicant becomes a Candidate. The eligibility period ends after 3 years on the same exam period as the initial exam period. For example, an Applicant that becomes a Candidate in December 1999 will have an eligibility period starting with the February 2000 exam period and ending with the February 2003 exam period. The 3-year eligibility period effectively gives Candidates 7 exam periods to complete.
  • Candidates also have a limit of two attempts to successfully pass an exam part. Eligibility extends 3 years. However, Candidates are only given two attempts to pass any individual exam part. If the Candidate fails an exam part before the end of the 3-year eligibility period, the eligibility period effectively ends and the individual must reapply to sit for future exams. Please refer to the Reapplication Requirements section for details.
  • Exam parts are not transferrable between eligibility periods. For example, if a Candidate passes Clinical Chemistry Part A and fails Clinical Chemistry Part B twice, the Candidate’s eligibility period ends and the individual must reapply and pass all exam parts in the subsequent eligibility period. The results of the prior eligibility period (i.e., passing Clinical Chemistry Part A) does not carryover into the new eligibility period. Candidates are required to sit for all exam parts regardless of past performance on any one portion. Failure to take or pass the exam parts within this time will result in termination of the eligibility period. If necessary, a Candidate that does not pass all exam parts within the eligibility period may reapply to sit for an ABCC exam. Details on Reapplication Requirements are below.
  • Candidates can only be eligible for one specialty at a time. Individuals cannot apply for or be eligible for multiple specialties during the same eligibility period. For example, an individual cannot apply for or be eligible to sit for the Clinical Chemistry AND Toxicological Chemistry specialties during the same period. Individuals must complete or end an eligibility period by either successfully passing all exam parts or failing an exam part twice BEFORE applying for another specialty.

How to Take an Exam!

An Applicant will become a “Candidate” for exam when the board or its committees are satisfied that the requirements for admission have been met. The Candidate for exam will be notified at least 45 days prior to an upcoming exam period. Visit Application and Exam Schedules for advance information on exam dates. Details on participating in an exam include:

  • Exam period take place twice a year; generally in February and August. This will give Candidates two attempts per year. Eligible Candidates will be notified by the email provided in their application approximately 45 days prior to each exam period. This will be the Candidates opportunity to enroll in an exam period. It is not required to enroll in every exam period offered; however, the Candidate is limited to a 3-year eligibility period to successfully pass all exam parts of the specialty. Visit Application and Exam Schedules for advance information on exam dates.
  • Candidate must submit online payment for the exam of interest. Candidates wanting to participate in an upcoming exam period must use the provided payment process sent in the exam notification email prior to each exam period. Details on self-registration for the day and time of the exam will only be provided to individuals that have submitted online payment within the designated timeframe.
  • Candidates may take multiple exam parts within an exam period. Candidates attempting Clinical Chemistry and Toxicological Chemistry may enroll for both Part A and Part B in a single exam period. This is not required, but is an option as these exam parts are scheduled on different days in the exam period.
  • Candidates must notify ABCCAdministrator@myadlm.org of any requested change at least 7 business days prior to the exam date. After online payment and/or self-registration of an exam, the Candidate must notify ABCC of a change request at least 7 business days prior to the exam. This includes requests to cancel an exam or change the date or time. Failure to notify ABCC of a change request 7 business days or greater from the exam date will result in forfeiture of the the exam fee.

An individual is considered an ABCC diplomate once they have successfully passed the required specialty exam(s) and completed any additional requirements if applying under an application exception. Successful candidates are issued a Certificate of Qualification by the Board to attest to their status as Diplomates of the American Board of Clinical Chemistry. Persons holding a valid Certificate of Qualification issued by the Board are entitled to use the designation “Diplomate of the American Board of Clinical Chemistry” and the initials “DABCC” whenever professionally appropriate. Diplomates of the American Board of Clinical Chemistry who complete the required continuing education requirements are referred to as Active members.

Application Fee

Amount: $500.00 USD
ABCC application fee is $500 USD for each application submitted and is non-refundable. Please note, an individual may only apply to a single specialty area per application cycle. Please note that a candidate eligible for a specialty will not be eligible to sit for a different specialty until they have completed the necessary requirements and examinations for the first specialty.

Exam Fee

Exam Fee: Variable by Speciality
Eligible test takers will be notified 4-6 weeks prior to each exam cycle for registration to the next exam period. Eligible test takers are not required to register for and sit for an exam during each cycle. However, eligible test takers must successfully pass all parts of their respective specialty within their 3-year eligibility period.
Clinical Chemistry: $200 USD Per Exam Part
Toxicological Chemistry: $200 USD Per Exam Part
Molecular Diagnostics: $400 USD (Only One Exam Part)

Key Dates

Key Dates

Application periods occur twice a year, typically in March-May and October-December. Exam periods also occur twice a year, usually in late February and late August.

Application Open: March 4, 2025
Application Close: May 7, 2025
Exam Payment Due: July 10, 2025
Exam Day 1 (Parts A): August 27, 2025
Exam Day 2 (Parts B and Molecular): August 28, 2025
Results Notification: September 2025

Contact Us

American Board of Clinical Chemistry (ABCC)
900 Seventh Street, NW Suite 400
Washington, DC 20001
Phone: 1.202.857.0717
Email:   ABCCAdministrator@myadlm.org
American Board of Clinical Chemistry (ABCC)
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