(a) The board may withdraw its approval of a course or deny an application approval for unprofessional conduct by the provider of the course, which shall include, but are not limited to, the following:

(b) The board may withdraw its approval of a provider and its curriculum after giving the provider written notice setting forth its reasons for withdrawal and after giving the provider an opportunity to be heard by the board or its designee.

(c) Should the board deny approval of a provider or a course request, the applicant may appeal the action by filing a letter stating the reason(s) for appeal with the board. The letter of appeal shall be filed with the board within 10 days of the mailing of the applicant's notification of the board's denial. The appeal shall be considered by the board or its designee. In the event that the board or its designee considers the appeal after the date of the course for which the appeal is being made, a retroactive approval may be granted.