Threatened species assessment is an integral part of environmental impact assessment. The Assessment of Significance Guidelines have been prepared to help applicants and/or proponents of a development or activity to interpret and apply the factors of assessment. These are the factors that need to be considered when assessing whether an action, development or activity is likely to significantly affect threatened species, populations or ecological communities, or their habitats. The guidelines clarify the specific terminology of the relevant legislation and provide clear interpretations of the factors of assessment.