D.C. Mun. Regs. tit. 17, r. 17-6605
To qualify for a license by examination, an applicant shall receive a score on the National Counselor Examination designated by the National Board for Certified Counselors as a passing score for that administration of the National Counselor Examination.
An applicant who, prior to applying for a license, has taken and passed an examination administered by a professional counselor licensure board in another jurisdiction in the United States, by the Commission for Certified Rehabilitation Counselors, or by the National Academy of Certified Mental Health Counselors (now a specialty within the National Board for Certified Counselors), will not be required to take the National Counselor Examination. An applicant relying on an alternative examination shall submit to the Board the applicant's examination results which have been certified or validated by the entity that administered the examination.
D.C. Mun. Regs. tit. 17, r. 17-6605