(a) Except as provided by Subsection (b), an issuer may issue revenue bonds to pay all or a part of the cost of acquiring, constructing, enlarging, or improving an industrial project, including a project in an enterprise zone designated under Chapter 2303, or a medical project.
(b) A district may not authorize revenue bonds for a medical project.
(c) An issuer may secure the payment of the bonds as provided by this chapter.