The Interim Queensland River Classification Scheme (QRCS) was developed by the Queensland Department of Environment and Science (DES). The QRCS provides a framework for classifying and typing Queensland’s rivers. It takes an attribute-based approach, identifying and describing physical, biological and chemical attributes of rivers, where an attribute is a descriptive characteristic or feature of an ecosystem. The scheme is adaptable and flexible and is based on and complements existing attribute-based classification schemes used within Queensland.