The Environmental Guidelines for Major Construction Sites provides a useful source document to help prepare and implement an environmental management plan for major constructions sites. The purpose of these Guidelines is to provide developers, contractors and government agencies involved with commissioning or constructing freeways, major roads or major development projects with: information on how to avoid and minimise environmental impact, which is preferable to the less cost-effective option of controlling or treating discharges to the environment, or undertaking remedial action; information on the likely impact of construction activities on the environment and how this is to be assessed; guidelines for undertaking risk assessment and management; a clear statement of environmental performance objectives for each segment of the environment; suggested best practice environmental measures to meet performance objectives based on available experience. The Guidelines provide contractors and developers with a framework within which due diligence obligations can be met and environmental damage can be avoided. The Guidelines are not prescriptive or detailed. Application will require tailoring them to particular site conditions and making adjustments if the measures listed are inappropriate to the site Many of the measures proposed in the Guidelines are also applicable to smaller construction sites (less than five hectares) and should be used where appropriate to avoid and minimise impact from such activities. The Guidelines do not refer to state legislation, regulations or environmental policies. Developers, contractors and subcontractors, when they are used, must make themselves aware of their legal obligations because they are responsible for compliance. Legislative requirements and standards are minimum standards, and projects should endeavour to continually improve on these standards.