Continuing competence units shall be obtained from a provider or agency approved by the board, including but not limited to:
(1) Continuing education courses, including home- and self-study courses, obtained from an agency recognized by the board;
(2) College coursework from an educational institution accredited by the United States Department of Education or other agency recognized by the board; and
(3) Other competence related activities approved by the board or an agency recognized by the board.