(a) The comptroller from time to time shall cancel by perforation all unneeded bonds of entities authorized by law to issue bonds to be registered in the comptroller’s office and shall return them by express or freight mail to the issuer at the issuer’s expense. The comptroller shall make a permanent record in the comptroller’s office of the cancellation or return.
(b) Not later than the 30th day before the date that the comptroller cancels bonds under this section, the comptroller shall give notice of the proposed cancellation by registered or certified mail to the entity. The notice must be addressed according to the latest information available in the comptroller’s office. If the comptroller becomes aware that the notice is undeliverable, the comptroller shall notify the county judge of the county in which the entity was situated in whole or part of the proposed cancellation. The notice to the county judge must be given not later than 30 days before the date the bonds are canceled and must indicate that the notice to the entity was undeliverable.

(c) Before the date fixed for the cancellation, the entity or county judge, on written notice and execution of a receipt in the form the comptroller prescribes, may repossess the bonds. Any shipping expense involved in the transaction shall be paid by the entity or the county whose county judge repossessed the bonds.
(d) An entity’s registered or unregistered bonds that remain in the comptroller’s office may be considered unneeded after five years after the date of the bonds.