Tex. Tax Code § 6.425

(a) This section applies only to the appraisal review board for an appraisal district described by Section 6.41(b-2).

(b) The appraisal review board shall establish special panels to conduct protest hearings under Chapter 41 relating to property that:

(1) has an appraised value as determined by the appraisal district equal to or greater than the minimum eligibility amount determined as provided by Subsection (g); and

(2) is included in one of the following classifications:

(A) commercial real and personal property;

(B) real and personal property of utilities;

(C) industrial and manufacturing real and personal property; and

(D) multifamily residential real property.

(c) Each special panel described by this section consists of three members of the appraisal review board appointed by the chairman of the board.

(d) To be eligible to be appointed to a special panel described by this section, a member of the appraisal review board must:

(1) hold a juris doctor or equivalent degree;

(2) hold a master of business administration degree;

(3) be licensed as a certified public accountant under Chapter 901, Occupations Code;

(4) be accredited by the American Society of Appraisers as an accredited senior appraiser;

(5) possess an MAI professional designation from the Appraisal Institute;

(6) possess a Certified Assessment Evaluator (CAE) professional designation from the International Association of Assessing Officers;

(7) have at least 10 years of experience in property tax appraisal or consulting; or

(8) be licensed as a real estate broker or sales agent under Chapter 1101, Occupations Code.

(e) Notwithstanding Subsection (d), the chairman of the appraisal review board may appoint to a special panel described by this section a member of the appraisal review board who does not meet the qualifications prescribed by that subsection if:

(1) the number of persons appointed to the board who meet those qualifications is not sufficient to fill the positions on each special panel; and

(2) the board member being appointed to the panel holds a bachelor's degree in any field.

(f) In addition to conducting protest hearings relating to property described by Subsection (b) of this section, a special panel may conduct protest hearings under Chapter 41 relating to property not described by Subsection (b) of this section as assigned by the chairman of the appraisal review board.

(g) By February 1 or as soon thereafter as practicable, the comptroller shall determine the minimum eligibility amount for the current tax year for purposes of Subsection (b)(1) and publish that amount in the Texas Register. The minimum eligibility amount for the 2020 tax year is $50 million. For each succeeding tax year, the minimum eligibility amount is equal to the minimum eligibility amount for the preceding tax year as adjusted by the comptroller to reflect the inflation rate.

(h) In this section:

(1) "Consumer price index" means the Consumer Price Index for All Urban Consumers (CPI-U), U.S. City Average, published by the Bureau of Labor Statistics of the United States Department of Labor.

(2) "Inflation rate" means the amount, expressed in decimal form rounded to the nearest thousandth, computed by determining the percentage change in the consumer price index for the preceding calendar year as compared to the consumer price index for the calendar year preceding that calendar year.