What is required each time an applicant retakes the examination?

When an applicant retakes the examination, payment of the applicable examination fee is required. This requirement is essential because it covers the administrative costs associated with administering the exam each time it is taken. Fees help to ensure that the examination process is adequately funded, which includes the costs for materials, venue, and staff necessary to conduct the exam.

Submitting a new application may not be necessary each time unless specifically stated by the regulatory board, and there is typically no requirement for an authorization letter from the board unless the rules stipulate it under certain conditions. The completion of a preparatory course is also not universally mandated for retakes, though it can be beneficial for the candidate's understanding and performance on the exam. Therefore, the payment of the fee clearly stands out as the requirement that must be fulfilled each time the exam is retaken.