upon being provided with an acceptable medical certificate, and after taking into account any other examination results of the candidate, allow the candidate to sit for an aegrotat examination in that subject; 17. (d) A supplementary or aegrotat examination may at the discretion of the examiner(s) or moderator(s) be in the form of a written or an oral examination. However, a supplementary or aegrotat examination for subject (g) in regulation 9 must be in the form of an oral examination; and (e) Supplementary and aegrotat examinations shall be held at a time and place determined by the Chairperson in consultation with the relevant examiner(s) and moderator(s) as soon as possible after the examination in respect of which the supplementary or aegrotat examination was allowed. A candidate who has passed a subject or obtained an exemption from a subject, shall retain credit for that subject for a period of five years or for such longer period as the Board may allow. In the event of a candidate not passing or being exempted from every subject provided for by regulation 9 within such period of five years, the Board may, in its discretion, either extend such period or require the candidate to sit for one or more of the subjects again. In exercising its discretion in terms of this regulation, the Board shall consider the general performance of the candidate, as well as changes in the relevant law, practice or syllabus, and any other circumstances, which it may consider relevant. MISCONDUCT IN REGARD TO EXAMINATIONS 18. The Board may debar any candidate from writing any examination of the Board or from doing so in a particular year if, after hearing the candidate, the Board is of the opinion, that such candidate has misbehaved during, or in connection with, any examination of the Board. APPLICATION OF THESE REGULATIONS 19. These regulations replace the previous regulations and shall apply to all candidates enrolling for the examination either on or after the date of publication of these regulations in the journal. TRANSITIONAL PROVISIONS 20. Notwithstanding the provisions of regulations 3 and 19 above, any candidate who does not satisfy the requirements of regulation 3 of these regulations but who satisfied the requirements of regulation 3 of the previous regulations, and who successfully completed at least one subject under the previous regulations, shall be entitled to enrol for the Examinations in terms of these regulations. 21. Any candidate who has successfully completed subjects (b) and (c) in regulation 10 of the previous regulations will receive subject credit for subject (a) in regulation 9 of these regulations. Similarly, any candidate who. has successfully completed any of subjects (a), (d), (e), (h), (i) and (j) in regulation 10 of the previous regulations will receive subject credit for corresponding subjects (b), (c), (d), (e), (f), and (g) in regulation 9 respectively of these