Alberta civil procedure
When must an Alberta defendant notify a co-defendant of contribution?
20 days after the defendant’s filing. File Form 15 and serve the notice on the co-defendant. Rule 3.43 covers contribution or indemnity under the named tort statutes against an existing co-defendant. This procedural notice does not resolve the separate substantive limitation.
- Period
- 20 days after the defendant’s filing
- Trigger
- Filing the defendant’s own statement of defence or demand for notice
- Rule
- Alberta Rules of Court, Alta Reg 124/2010, r 3.43(2)
Official Rules of Court volume current June 2026, including AR 79/2026. The official 2026 regulation index was checked for subsequent amendments.
Source guide · No automated date
Check the applicable procedure
Rule 3.43 covers contribution or indemnity under the named tort statutes against an existing co-defendant. This procedural notice does not resolve the separate substantive limitation. The unresolved completion facts are filing the defendant’s own statement of defence or demand for notice and the source-qualified route to file Form 15 and serve the notice on the co-defendant.
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When must an Alberta defendant notify a co-defendant of contribution?
20 days after the defendant’s filing. File Form 15 and serve the notice on the co-defendant. Rule 3.43 covers contribution or indemnity under the named tort statutes against an existing co-defendant. This procedural notice does not resolve the separate substantive limitation.
Responsible actor. The defendant claiming contribution or indemnity from a co-defendant.
Filing the defendant’s own statement of defence or demand for notice.
Rule 3.43 covers contribution or indemnity under the named tort statutes against an existing co-defendant. This procedural notice does not resolve the separate substantive limitation.
Rule 3.43 covers contribution or indemnity under the named tort statutes against an existing co-defendant. This procedural notice does not resolve the separate substantive limitation.
Alberta Rules of Court, Alta Reg 124/2010, r 3.43(2)How does this provision count time?
- Identify filing the defendant’s own statement of defence or demand for notice.
- File Form 15 and serve the notice on the co-defendant.
- For file Form 15 and serve the notice on the co-defendant, rule 13.3 excludes the actual event day and counts ordinary calendar days. The source states 20 days after the defendant’s filing. Rule 3.43 covers contribution or indemnity under the named tort statutes against an existing co-defendant. This procedural notice does not resolve the separate substantive limitation.
- Check the actual completion for file Form 15 and serve the notice on the co-defendant. Interpretation Act section 22 distinguishes a holiday from a closed office where an act must be completed. Verify the operative recipient, filing method and opening facts before applying an open-day carry to 20 days after the defendant’s filing.
For file Form 15 and serve the notice on the co-defendant, rule 13.3 excludes the actual event day and counts ordinary calendar days. The source states 20 days after the defendant’s filing. Rule 3.43 covers contribution or indemnity under the named tort statutes against an existing co-defendant. This procedural notice does not resolve the separate substantive limitation.
Check the actual completion for file Form 15 and serve the notice on the co-defendant. Interpretation Act section 22 distinguishes a holiday from a closed office where an act must be completed. Verify the operative recipient, filing method and opening facts before applying an open-day carry to 20 days after the defendant’s filing.
Alberta Rules of Court, Alta Reg 124/2010, r 3.43(2)Which facts prevent one automatic date?
Rule 3.43 covers contribution or indemnity under the named tort statutes against an existing co-defendant. This procedural notice does not resolve the separate substantive limitation. The unresolved completion facts are filing the defendant’s own statement of defence or demand for notice and the source-qualified route to file Form 15 and serve the notice on the co-defendant.
The defendant claiming contribution or indemnity from a co-defendant establishes filing the defendant’s own statement of defence or demand for notice. Rule 3.43 covers contribution or indemnity under the named tort statutes against an existing co-defendant. This procedural notice does not resolve the separate substantive limitation. 20 days after the defendant’s filing. File Form 15 and serve the notice on the co-defendant. This source scenario does not calculate a final date.
The proposed boundary for file Form 15 and serve the notice on the co-defendant meets a holiday or closed office. Check the actual completion for file Form 15 and serve the notice on the co-defendant. Interpretation Act section 22 distinguishes a holiday from a closed office where an act must be completed. Verify the operative recipient, filing method and opening facts before applying an open-day carry to 20 days after the defendant’s filing. Establish the precise required completion and applicable closure facts. No moved final date is supplied.
The proposed recipient is a new third party rather than an existing co-defendant. Rule 3.43 covers contribution or indemnity under the named tort statutes against an existing co-defendant. This procedural notice does not resolve the separate substantive limitation. Review Alberta Rules of Court, Alta Reg 124/2010, r 3.43(2) with the changed facts. 20 days after the defendant’s filing cannot resolve this branch by itself.
Which conditions and exceptions apply?
- Actual source branch
- Rule 3.43 covers contribution or indemnity under the named tort statutes against an existing co-defendant. This procedural notice does not resolve the separate substantive limitation.
- Source interval and calendar
- For file Form 15 and serve the notice on the co-defendant, rule 13.3 excludes the actual event day and counts ordinary calendar days. The source states 20 days after the defendant’s filing. Rule 3.43 covers contribution or indemnity under the named tort statutes against an existing co-defendant. This procedural notice does not resolve the separate substantive limitation.
- Actor and completion
- The defendant claiming contribution or indemnity from a co-defendant. File Form 15 and serve the notice on the co-defendant.
- Rule 3.43 covers contribution or indemnity under the named tort statutes against an existing co-defendant. This procedural notice does not resolve the separate substantive limitation.
- The actor is the defendant claiming contribution or indemnity from a co-defendant. The event is filing the defendant’s own statement of defence or demand for notice. The boundary is required completion. Rule 3.43 covers contribution or indemnity under the named tort statutes against an existing co-defendant. This procedural notice does not resolve the separate substantive limitation.
What must the responsible actor complete?
Questions about this procedure
When must an Alberta defendant notify a co-defendant of contribution?
Does service of the plaintiff’s claim start this notice?
No. Rule 3.43(2) uses the defendant’s filing of its own defence or demand for notice.
Alberta Rules of Court, Alta Reg 124/2010, r 3.43(2)Which contribution notice form applies?
Rule 3.43(1)(a) specifies Form 15.
Alberta Rules of Court, Alta Reg 124/2010, r 3.43(2)Must a full third party claim also be served on that co-defendant?
Rule 3.43(1)(c) says it need not be filed and served for this qualifying contribution or indemnity claim.
Alberta Rules of Court, Alta Reg 124/2010, r 3.43(2)Does the co-defendant need a further pleading automatically?
Paragraph(1)(b) says neither side needs a pleading on the named statutory contribution claim unless the Court orders otherwise.
Alberta Rules of Court, Alta Reg 124/2010, r 3.43(2)Does this twenty-day procedure decide the limitation period?
No. Limitations Act section 3(1.1) independently governs the substantive contribution claim.
Alberta Rules of Court, Alta Reg 124/2010, r 3.43(2)When is the contribution claim determined?
Rule 3.43(3) provides determination at the plaintiff’s trial, or as directed if there is no trial.
Alberta Rules of Court, Alta Reg 124/2010, r 3.43(2)Official sources and review
Provisions used (3)
| Provision | Purpose |
|---|---|
| Alberta Rules of Court, Alta Reg 124/2010, r 3.43(2) | Check the identified procedure, event, counting rule or qualification |
| Alberta Rules of Court, rules 13.2 to 13.5 | Check the identified procedure, event, counting rule or qualification |
| Alberta Interpretation Act, section 22 | Check the identified procedure, event, counting rule or qualification |