The Environmental Planning and Assessment (Development Certification and Fire Safety) Regulation 2021 requires mandatory inspections to be undertaken by the appointed Principal Certifier before, during and at the completion of a building project to ensure that the development is constructed in accordance with the development consent or complying development approval, the NCC (Building Code of Australia) and other legislative requirements relating to health and safety.
There are several mandatory critical stage inspections required for all types of Class 1 and 10 development which may include:

