The board shall:
(1) adopt rules necessary to administer and enforce sections 148.621 to 148.633 ;
(2) administer, coordinate, and enforce sections 148.621 to 148.633 ;
(3) evaluate the qualifications of applicants;
(4) issue subpoenas, examine witnesses, and administer oaths;
(5) conduct hearings and keep records and minutes necessary to the orderly administration of sections 148.621 to 148.633 ;
(6) investigate persons engaging in practices that violate sections 148.621 to 148.633 ; and
(7) adopt rules under chapter 14 prescribing a code of ethics for licensees.