There shall be two categories of state-certified real estate appraisers, one category of state-licensed real estate appraisers, and one category of state-registered appraiser trainee as follows:
(1) The state-certified general real estate appraiser;
(2) The state-certified residential real estate appraiser;
(3) The state-licensed real estate appraiser; and
(4) The state-registered appraiser trainee.