Final Certificate
# Chapter 24: Final Certificate \- Project Closure

Issuing a final certificate feels like crossing the finish line, but you're not quite done running yet. This certificate formally concludes your contract administration duties while kicking off a surprisingly long tail of professional obligations.
### **The Certificate Process**
Under AS 4000 (whether the 1997 version most projects use or the new 2025 edition), you'll issue the final certificate within 42 days after the defects liability period expires. It's a critical document, it becomes conclusive evidence that the contract is complete, except in cases of fraud. Most Victorian projects run 12-month defects periods for commercial work, though residential HIA contracts often specify just 3-6 months.
### **What Continues After Certification**
Here's what catches many graduates off guard: Victorian architects face a **10-year limitation period** for building actions from the occupancy permit date. Your professional indemnity insurance (minimum $1 million per claim) needs to continue covering this exposure. The statutory warranties are actually 6 years for structural defects and 2 years for non-structural, not the 10 years many assume.
Climate resilience adds new layers. Since May 2024, you're documenting 7-star NatHERS ratings, Whole of Home energy budgets, and comprehensive commissioning data. Think seasonal performance testing and building management system configurations that owners will actually need to maintain these standards.
Your ARBV obligations require keeping all project documentation for 10 years minimum. While you're not obligated to provide free services post-completion, professional courtesy suggests reasonable assistance when issues arise.
**Key Terms:**
- **Defects liability period**: Contractor's obligation period to fix defects (typically 12 months commercial, 3-6 months residential)
- **Limitation period**: Legal timeframe for bringing claims, 10 years for building actions in Victoria
- **Statutory warranty**: Builder's legal guarantee, 6 years structural, 2 years non-structural under Victorian law
- **Final certificate**: Conclusive evidence of contract completion, releasing retention funds
- **NatHERS rating**: Nationwide House Energy Rating Scheme score (7-star minimum from May 2024\)
Test Your Knowledge
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