The purpose of this guideline is to provide a coherent and practical guide to the application of the joint Australian/New Zealand Technical Report, TR IEC 61000.3.7:2012 for limiting voltage fluctuations in medium voltage (MV) and high voltage (HV) distribution networks, and to present a simplified approach that a particular DNSP may elect to adopt under certain circumstances. It should be understood that this guideline is not binding and the DNSPs own voltage fluctuations management policies shall prevail. The Joint Australian/New Zealand Technical Report is an identical adoption of the IEC publication IEC/TR 61000-3-7, Ed 2.0 (2008). The guideline is intended to serve as a supporting document to the National Electricity Rules and to Rules of other DSNPs that do not come under the jurisdiction of the Australian Energy Regulator (AER).