(a) If the list of endangered or threatened plants issued by the United States is modified, the director shall file an order with the secretary of state accepting the modification unless the director finds that the plant does not occur in this state. The order is effective immediately.
(b) The director may amend the list of endangered, threatened, or protected native plants by filing a modification order with the secretary of state. The order is effective on filing.

(c) The director shall give public notice of the intention to file a modification order under Subsection (b) of this section at least 60 days before the order is filed. The notice must contain the contents of the proposed order.
(d) The director shall hold a public hearing at least 30 days before the modification order authorized by Subsection (b) of this section is filed.