Certificate of Compliance — Plumbing and Drainage (Multi-state: VIC / NSW / QLD)
Form number: VIC: no fixed form number — purchased and lodged via VBA360 portal; NSW: Combined Notice of Work & Certificate of Compliance; QLD: Form 4 / Form 4a
A mandatory post-completion certificate that every licensed plumber must issue to the property owner and lodge with the state regulator confirming that plumbing and drainage work complies with the relevant plumbing regulations.
Issuing authority
VIC: Building and Plumbing Commission (BPC, formerly VBA) via VBA360 / NSW: Building Commission NSW via eCert portal / QLD: issued with QBCC Form 4 registration
Official source
vba.vic.gov.auCost
VIC: Certificate purchase fee via VBA360 (fee set by BPC — check vba360.vba.vic.gov.au); NSW: Fee varies; QLD: $35.67 online / $48.17 manual for Form 4 registration
Deadline
Within 5 business days of completing the work (VIC and NSW); within 20 business days (QLD)
How to apply
- Confirm the work meets the threshold: VIC — any plumbing, drainage, gasfitting or mechanical services work over $750 (gas, below-ground drainage, fire protection, and mechanical services require a certificate regardless of cost); NSW — any notifiable plumbing or drainage work; QLD — any notifiable work above the relevant threshold.
- VIC: Log into VBA360 (vba360.vba.vic.gov.au), purchase a compliance certificate for the relevant work type (plumbing, drainage, gasfitting, or mechanical services), and attach the site address.
- NSW: On completion of the licensed plumbing work, complete the Certificate of Compliance section of the Combined Notice of Work & Certificate of Compliance form, then lodge via the BCNSW portal (formerly MyInspections).
- QLD: Register the completed notifiable work via the myQBCC Form 4/4a portal (see Notice of Work record) — the registration acts as the compliance record.
- Give the property owner or occupier a copy of the certificate within 5 business days (VIC/NSW) or 20 business days (QLD) of completing the work.
- Lodge the certificate with the regulator within the same 5-business-day window (VIC and NSW).
- Retain your own copy for at least 5 years for audit purposes.
- VIC: Certificates purchased from 13 August 2025 expire 1 year after purchase if no site address is allocated — ensure the site address is added promptly.
Related topics
Related forms
- Notice of Work — Plumbing and Drainage (NSW) / Notifiable Work Form 4 (QLD)NSW: Combined Notice of Work & Certificate of Compliance (no single number); QLD: Form 4 / Form 4a
- Gas Installation Compliance Certificate — Multi-state (VIC / NSW / QLD)VIC: BPC Compliance Certificate (VBA360); ESV: Statement of Compliance (Schedule 11) for complex gas / NSW: Certificate of Compliance (networked) or Certificate of Inspection (non-networked) via BCNSW eCert / QLD: Gas System Compliance Certificate via RSHQ Portal
- Electrical Worker's Licence (EWL) / Electrical Tradesperson Licence — Western Australia
- TAS Electrical Practitioner Licence
- Electrical Contractor Licence / Registered Electrical Contractor (REC) Registration — Multi-State
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