The Aggregate Resources Act (ARA) states: “Every licensee and every permittee shall perform progressive rehabilitation and final rehabilitation on the site in accordance with this Act, the regulations, the site plan and the conditions of the license or permit to the satisfaction of the Minister. R.S.O. 1990, c. A.8, s. 48 (1).

Progressive rehabilitation means rehabilitation is done sequentially within a reasonable time after extraction of aggregate resources is complete. Typically, this occurs in phases: before proceeding to the next extraction phase, rehabilitation must be completed in the areas where aggregate reserves have been exhausted.

Please check out this video created by OSSGA to see innovative approaches to rehabilitation that has the potential to create more unique landforms or functional ecosystems (including species at risk habitat) after extraction is complete.