Frequently Asked Questions

If you have a question that is not answered below, feel free to contact us at

Q: What is involved with getting my application approved?
A: Your application form must be completed, notarized and submitted. Yes, it can be scanned and submitted electronically, or faxed. Once we have a completed application and the application fee, a file is established for you and you’re assigned a registration number.

Q: Do I have to take the exam at one of the scheduled times and dates listed on the website?
A: No. About 90% of applicants take the examination at approved testing centers or with approved local proctors. Many colleges, universities, public libraries, and commercial testing centers (such as Sylvan Learning Centers) offer proctoring services. You may also use a local NRCC certificate holder or Board of Director member as a proctor, and in some cases we have approved supervisors or religious leaders. If you aren’t sure about the acceptability of a proctor, just ask! In most cases all that is required is an email from the proctor agreeing to administer the exam according to our procedures, along with a mailing address and scheduled test date.

Q: What is a passing score on the exam?
A: Based on standards established by the Board of Directors, which may change periodically, the current passing grades are as follows…
-Chemical Hygiene Officer: 60% (90 of 150 questions)
-Environmental Analytical Chemist and Environmental Analytical Technician: 60% (90 of 150)
-Clinical Chemist, Clinical Chemistry Technologist, Toxicological Chemist, Toxicological Technician: 60% (90 of 150)

Q: How is the Board of Directors elected, and what do they do?
A: The BOD consists of representatives nominated by the following organizations: American Association for Clinical Chemistry, American Board of Clinical Chemistry, American Chemical Society, and the American Industrial Hygiene Association. Members are elected to three year terms, and can serve a maximum of three terms. The Board members are responsible for establishing and maintaining standards and qualifications for the granting, issuing and renewing of certifications. They participate in the development of new tests and programs, and all applications are evaluated by a credentials committee consisting of three Board members. We are fortunate to have a dedicated, productive Board who contribute considerable time to support NRCC.

Q: Will you notify my state agency of my new certification if I need certification for my licensing?
A: Yes, if you send an email request and provide the appropriate contact information. There is no charge for this service.

Q: My transcripts are from an institution outside the United States and Canada. Where can I find a list of approved evaluation agencies as required for my certification?
A: A list of approved evaluation agencies can be downloaded at this link.