(a) This chapter expires on September 1, 2041.
(b) A corrective action, including any administrative duties associated with the action, for which remediation of a contaminated site has begun before September 1, 2041, shall be completed in accordance with this chapter using money from the fund, to the extent possible, but money may not be collected for or added to the fund on or after that date.

(c) The commission may continue a corrective action that has not progressed beyond the investigative or planning stage after September 1, 2041, to the extent money from the fund is available.
(d) Any unobligated money remaining in the fund after the completion of all corrective actions under Subsection (b) shall be transferred to the general revenue fund to the credit of the commission or a successor agency. The fund is abolished on the date of the transfer.