When written examinations are required, they shall be held at the time and places in the State of North Carolina as the Board shall determine. The methods of procedure will be described by the Board. A candidate failing an examination may apply for reexamination after six months and will be reexamined with payment of an additional fee established by the Board, not to exceed fifty dollars ($50.00). Subsequent examinations will be granted upon payment of this fee for each examination. The Board may limit an applicant to three examinations. (1975, c. 531, s. 12; 1998-157, s. 1.)