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 |
|---|---|---|---|
| Quick Links - Lynx |
High-value payments - Lynx system rules, procedures and by-laws
|
High-value payment system - Lynx | |
| 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 | |
| Best practice |
Uniform treatment of wire payments
|
High-value payment system - Lynx | |
| Best practice |
CACPA code straight-through processing (STP) formatting
|
High-value payment system - Lynx | |
| Guideline |
Deduction of charges for the receipt of Lynx payments
|
High-value payment system - Lynx | |
| Guideline |
Misdirected Lynx payments
|
High-value payment system - Lynx | |
| PRD-001 |
Settlement exchange transaction (SET)
|
High-value payment system - Lynx | |
| PRD-002 |
Procedures for foreign currency transfers within Canada
|
High-value payment system - Lynx | |
| PRD-003 |
Procedures for claims and compensation for US dollar and foreign currency transfers within Canada
|
High-value payment system - Lynx | |
| Rule 1 |
Interpretation
|
High-value payment system - Lynx | |
| Rule 2 |
General
|
High-value payment system - Lynx |