Department of Environment Regulation

The Department of Environment Regulation's purpose is to advise on and implement strategies for a healthy environment for the benefit of all Western Australians.

DER will achieve this by efficiently, effectively and objectively delivering:
- Service 1: Environmental Regulation – by performing environmental regulation functions of approvals, monitoring, compliance and enforcement
- Service 2: Environmental Sustainability and Climate Change - by advising on and implementing Government’s environmental policies and programs.

On 1 July 2017, the Department of Environmental Regulation amalgamated with the Department of Water and the Office of the Environmental Regulation Authority to form the Department of Water and Environmental Regulation.