TRAVEL EXPENSES FOR CERTAIN COUNTY AGENTS AND BOARD MEMBERS.
Tex. LOC. GOV'T Code § 152.901.
in effect(a) The commissioners court of a county may authorize the payment of reasonable travel expenses incurred by a person who:
(1) is an agent of the county, or is a board or committee member appointed by the commissioners court; and
(2) is not a county or precinct officer or employee whose travel expenses may be set under Section 152.011 .
(b) The travel expenses must be incurred by the person while performing county business authorized by the commissioners court.