Texas Government Code - GOV'T § 611.001. Lodging and Meal Expenses

(a) An officer or employee of the state or of a political subdivision, including any special-purpose district or authority, may be reimbursed with public funds for lodging or meal expenses only to the extent the expenses are reasonable and necessary under guidelines issued by the Texas Ethics Commission.

(b) This section does not apply if the expenses are restricted by other law.