Texas Government Code - GOV'T § 30.00015. Appeal Bond

(a) If the defendant is not in custody, the defendant may not take an appeal until the defendant files an appeal bond with the municipal court of record. The bond must be approved by the court and must be filed not later than the 10th day after the date on which the motion for new trial is overruled. If the defendant is in custody, the defendant shall be committed to jail unless the defendant posts the appeal bond.

(b) The appeal bond must be in the amount of $100 or double the amount of the fines and costs adjudged against the defendant, whichever is greater.

(c) The bond must: