Texas Special District Local Laws Code - SDLL § 9059.206. Bonds secured by ad valorem taxes

(1) to pay the principal and interest on the bonds as the principal and interest respectively mature;

(2) to create and maintain any reserve required by the resolution or resolutions authorizing the issuance of the bonds;

(3) to pay the expense of assessing and collecting the tax; and

(4) for anticipated delinquencies in the tax payments.