Pesticides and other agricultural chemicals are used in a wide variety of applications – from crops and plantations to use in industry and buildings. By their nature, the chemicals can be toxic to humans and native plants and animals. As a result, laws have developed to control the type of chemicals that can be used, and the manner in which they can be used and transported.

This fact sheet explains the laws relating to pesticide and other agricultural chemical use in Western Australia, and identifies the bodies responsible for its management. See also Fact Sheet: Industrial chemicals, Fact Sheet: Contaminated sites, Fact Sheet: Air quality, and Fact Sheet: Pollution and environmental harm.