D.C. Mun. Regs. tit. 17, r. 17-2507
Notwithstanding any other provision of this chapter, the Board may postpone scheduled examinations, the release of grades, or the issuance of licenses and certificates due to a breach of examination security; unauthorized acquisition or disclosure of the contents of an examination; suspected or actual negligence, errors, omissions, or irregularities in conducting an examination; or for any other reasonable cause or unforeseen circumstance.
If the Board postpones a scheduled examination, the Board shall grant the candidates affected by the postponement additional time to pass the four sections of the Uniform CPA Examination. The additional time granted by the Board to the affected candidates shall be added to the eighteen (18) month testing period described in § 2506.7.
The additional time granted by the Board shall be the longer of the number of days between the date of the postponed examination and the next date that the Board allows the affected candidates to retake the Uniform CPA Examination or three months.
D.C. Mun. Regs. tit. 17, r. 17-2507