ACSS rule changes enhance payment system processes
These changes took effect on July 27, 2026.
Payments Canada has implemented a series of administrative and operational amendments to the Automated Clearing Settlement System (ACSS) rules. These updates provide expanded definitions and process efficiency.
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 |
|---|---|---|---|
| TSP-005 |
Lynx MX payment message types and formats
|
High-value payment system - Lynx | |
| TSP-004 |
Lynx throughput target
|
High-value payment system - Lynx | |
| TSP-003 |
Lynx system parameters
|
High-value payment system - Lynx | |
| TSP-002 |
Lynx emergency procedures
|
High-value payment system - Lynx | |
| TSP-001 |
Lynx MT payment message types and formats
|
High-value payment system - Lynx | |
| Rule 16 |
Remittance information
|
High-value payment system - Lynx | |
| Rule 15 |
Cross-border Arrangements
|
High-value payment system - Lynx | |
| Rule 14 |
Claims and compensation
|
High-value payment system - Lynx | |
| Rule 13 |
Suspension, revocation and reinstatement
|
High-value payment system - Lynx | |
| Rule 12 |
Emergencies
|
High-value payment system - Lynx | |
| Rule 11 |
Testing and certification
|
High-value payment system - Lynx | |
| Rule 10 |
Finality and return
|
High-value payment system - Lynx |