(a) A state agency shall reimburse the commission through interagency contract for the reasonable and necessary expenses incurred by the commission in conducting a review under § 21.453.
(b) The commission shall maintain a record of the time expended and the actual costs and travel expenses incurred by the commission in conducting a review under § 21.453.

(c) The amount of reimbursement paid by a state agency under Subsection (a) and the record maintained by the commission under Subsection (b) is subject to audit by the state auditor in accordance with Chapter 321, Government Code.
(d) Annually, the commission shall:
(1) review the reimbursements received by the commission under this section to ensure that the commission recovers the expenses described by Subsection (a); and
(2) adjust the reimbursement rate if, as a result of the most recent annual review, the commission determines that the reimbursement rate is higher or lower than the rate required to recover those expenses.