Of the hours of continuing education required for biennial renewal of licensure, any licensee of the Board of Medicine may be required by the Board to complete up to two hours of Type 1 continuing learning activities or courses in a specific subject area. If the Board designates a subject area for continuing learning activities or courses, it shall publish such requirement no later than January 1 of the first year of the term of the license for which the specific learning activity or course is required.