(a) On the application of the charter holder, the commissioner may grant designation as a charter district to an open-enrollment charter school that meets financial standards adopted by the commissioner. The financial standards must require an open-enrollment charter school to have an investment grade credit rating as specified by Section 45.0541.
(b) A charter district may apply for bonds issued under Chapter 53 for the open-enrollment charter school, including refunding and refinanced bonds, to be guaranteed by the permanent school fund as provided by Chapter 45.