What certifiers do
Certifiers assess applications for developments, and are required to uphold the public interest – they don't work for builders or developers. Learn more.

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Replacing a certifier
There are steps you’ll need to take if you need to replace your principal certifier.
Related information
How we audit building certifiers
We audit building certifiers because we want the community to trust in the building and construction industry. Find out more.
Certifier Disciplinary Register
The register contains public information about disciplinary actions we’ve taken against current and former registered certifiers.
What to do if you're concerned about neighbouring development
Find out who can help, and what certifiers, local councils and Building Commission NSW can do.