This data bulletin summarises the main findings from the 2007-08 Alcohol and Other Drug Treatment Services National Minimum Data Set (AODTS-NMDS) data for Western Australia. Other data bulletins are available for most states and territories in Australia. More detailed information about the 2007-08 collection and its national findings can be found in the publication Alcohol and other drug treatment services in Australia 2007-08: report on the National Minimum Data Set (AIHW 2009).