Texas Government Code - GOV'T § 1477.064. Rates and Charges

(1) operate and maintain the project;

(2) pay when due the principal of and interest on the bonds; and

(3) establish any reserves provided in the order authorizing the issuance of the bonds.

(1) is not a debt of the county issuing the bond;

(2) may be a charge only on pledged revenue of a project;

(3) may not be included in determining the power of the county to issue bonds or incur other debt for any purpose authorized by law; and

(4) must contain the following provision: “The holder of this bond is not entitled to demand payment of this obligation out of any money raised by taxation.”