Section 9-712 - Bonds issued by municipal authorities - Tax levy to pay interest and principal(a) While any bonds issued under Part II of this subtitle are outstanding, the municipal authority annually shall levy a tax against all of the assessable property served within the municipality to pay the principal and interest on the bonds.(b) The tax shall be: (1) Sufficient to pay: (i) When due, the principal and interest on the bonds; or(ii) The part of the principal or interest on the bonds that is not paid for by the levy of the annual front-foot assessment under § 9-713 of this subtitle or by the service charges collected under § 9-714 of this subtitle; and(2) Treated the same as any other municipal tax in every respect, including as to: (iv) Manner of determination, levy, and collection.(c)(1) Each person involved in the levy or collection of the taxes shall perform the duties promptly and properly.(2) A person may not use any funds collected under this section for any purpose other than the payment of principal and interest on the bonds.