Texas Local Government Code - LOC GOV'T § 320.074. Proceeds

(a) The proceeds of the bonds shall be used under the restrictions provided in the bond order or in any separate escrow agreement, or both. The holders of the bonds and any trustee provided for in respect to the bonds have a lien on the proceeds until so applied.

(b) From the bond proceeds, there may be set aside:

(c) Proceeds remaining after the amounts are set aside under Subsection (b) shall be used for the payment of all expenses necessarily incurred in the sale, issuance, and delivery of the bonds and then for the purposes specified in the bond order and in the bonds.

(d) Any surplus remaining after accomplishment of the bond purposes shall be used for retiring the bonds to the extent that they can be purchased at prevailing market prices, with any remainder being deposited to the credit of the interest and sinking fund.