22 Tex. Admin. Code § 75.5
The Texas Board of Chiropractic Examiners will pay the expenses of a witness or deponent in an administrative proceeding who is not a party and who is subpoenaed or otherwise compelled to attend any hearings, depositions, or proceedings under the board's jurisdiction in the following manner:
(2) for any witness or deponent whose attendance is requested by the board staff:
(A) travel expenses, if the place where attendance is required is more than 25 miles from the person's place of residence, in the following amounts:
Source Note:The provisions of this §75.5 adopted to be effective April 8, 1996, 21 TexReg 2538.