The 2019 Amendments That Streamlined Ontario's Record of Site Condition Process

The problem being addressed

Brownfield redevelopment turns underused industrial and commercial land into housing and mixed-use property. It also carries an environmental process that could take longer than the construction. The 2019 amendments targeted specific points where the process created delay disproportionate to the risk.

What the amendments changed

The reforms simplified aspects of the risk assessment route, including removing sampling requirements that added cost without adding information where contaminant distribution was already understood. Several administrative requirements around filing were eased.

What did not change is the substance: the site condition standards, and the principle that an RSC can only be filed when the property meets the criteria for its intended use. Where exceedances remain, a risk assessment is still the route.

Why this still matters

The 2019 amendments began a sequence of reforms that continued through the excess soil regime and the further RSC amendments of October 2025. For anyone planning a redevelopment, the practical lesson from that sequence is that the requirements move — and a report or an assumption carried over from an earlier project may reflect rules that no longer apply.

Confirm the current position when the project starts, not when the filing is due.