D.C. Mun. Regs. tit. 17, r. 17-6404
To qualify for a license by examination, an applicant shall receive a passing score on the examination administered by the National Board of Examiners in Optometry (the national examination).
An applicant who has passed an examination specified in § 6404.1 more than five (5) years prior to the application date, but who does not qualify for a license by reciprocity, shall not be required to retake the examination if the applicant demonstrates to the satisfaction of the Board that the applicant has been continuously licensed and practicing as an optometrist in the United States since the date the applicant passed the examination.
An applicant shall submit to the Board with a completed application the applicant's examination results, certified by the National Board of Examiners in Optometry, to the Board.
The passing score on the national examination shall be the passing score set by the National Board of Examiners in Optometry on each test that forms a part of the examination.
Effective June 1, 1994, an applicant for licensure by examination shall receive a passing score on the practical examination portion of the national examination administered by the National Board of Examiners in Optometry (the national examination) which is designed to test an applicant's initial competency in the practice of optometry.
D.C. Mun. Regs. tit. 17, r. 17-6404