This data briefing summarises the main findings from the 2004-05 Alcohol and Other Drug Treatment Services (AODTS) NMDS data for NSW. Throughout this briefing, data from NSW are presented along with 2004-5 national AODTS-NMDS data. Highlights include: 287 government-funded alcohol and other drug treatment agencies provided 43,079 'closed treatment episodes'; almost one-third of closed treatment episodes were for clients aged 20-29 years or 30-39 years; and male clients accounted for about two-thirds (67%) of all closed treatment episodes.