The purpose of this Review of the Alcohol and Other Drug Treatment Services National Minimum Data Set (AODTS-NMDS) was to assess the collection as an information source for alcohol and other drug services policy; assess data gaps; and, propose options for future development within the collection. The review has highlighted the importance of a comprehensive, robust and consistent data collection about alcohol and other treatment. The AODTS-NMDS remains a key component of the data toolbox available to inform government, service provision and the public on alcohol and other drug issues in Australia.