Amends the Downstate Forest Preserve District Act. Restores language concerning how the terms of elected commissioners are to be determined for a forest preserve district having boundaries that are coextensive with the boundaries of a county having a population of more than 800,000 but less than 3,000,000. Specifies that the changes made by the amendatory Act are to be deemed to have been in continuous effect since November 15, 2021 (the effective date of the Public Act that deleted language concerning how the terms of elected commissioners of such a district are to be determined) and are to remain in effect until lawfully repealed. Provides that all actions that were taken on or after 2021 and before the effective date of the amendatory Act by a downstate forest preserve district or any other person and that are consistent with or in reliance on the changes made by the amendatory Act are validated. Effective immediately.