This report is the second communication of the Better Regulatory Frameworks project. Undertaken by researchers at Monash University, it maps the current regulatory frameworks that impact on urban water management in Victoria, with a particular focus on the Melbourne metropolitan area. This report represents a preliminary conceptual model and issues paper, which suggests areas where research is needed and advances some preliminary understandings to be tested. The report also synthesises and presents detailed descriptions of the principal actors, roles, responsibilities, legislation and tools which characterise the Melbourne urban water regulation space, and represents them in the form of diagrams, termed maps in this report.