(a) An administrative law judge assigned to hear an appeal brought under this subchapter must have knowledge of:
(1) each of the appraisal methods a chief appraiser may use to determine the appraised value or the market value of property under Chapter 23, Tax Code; and
(2) the proper method for determining an appeal of a protest, including a protest brought on the ground of unequal appraisal.
(b) An administrative law judge is entitled to attend one or more training and education courses under Sections 5.04 and 5.041, Tax Code, to receive a copy of the materials used in a course, or both, without charge.