The Canadian Securities Administrators (CSA) issued two staff notices to support implementation of amendments to rules on trade repositories and derivatives data reporting that take effect on July 25, 2025. The package includes a Frequently Asked Questions document on derivatives trade reporting and a suggested form of notice for reporting counterparties to use when notifying regulators of significant reporting errors or omissions. The FAQ is intended to clarify how certain amended requirements should be implemented, while preserving flexibility for reporting counterparties and trade repositories to operationalize them within their existing business frameworks. The notice on significant errors or omissions provides a standardized template to help reporting counterparties meet the new notification requirement in a consistent way across CSA jurisdictions.