(1) The board may grant waivers or extensions of time within which to fulfill continuing education requirements in cases involving physical disability or undue hardship. To be considered for a waiver, an applicant shall submit a written application on forms provided by the board. Waivers may be granted for a period not to exceed two calendar years. In the event the physical disability or undue hardship for which the waiver has been granted continues beyond the period of waiver, the licensee must reapply for an extension of the waiver.