Rules & documentation

Rule amendments support expanded membership and access to critical national infrastructure

These changes took effect on February 9, 2026.

A series of amendments to the Automated Clearing Settlement System (ACSS) rules are now in effect. These changes, which became effective on February 9, 2026, are designed to align with recent legislative updates to the Canadian Payments Act (CP Act) and refine and enhance operations and processing procedures.

Payments Canada’s rules, standards and procedure documents are updated regularly and versions posted online are in force. You can contact Payments Canada for confirmation by e-mail at info@payments.ca.

Item Title Updated System
Association By-law No. 3
Payment Items & ACSS By-law
Retail batch payment system, System by-laws
Association By-law No. 6
Compliance
Retail batch payment system, High-value payment system - Lynx, System by-laws
Association By-law No. 9
Lynx
High-value payment system - Lynx, System by-laws