What we knew prior to April 2011 from the former Drug Treatment Waiting Times Information Framework is as follows: Longest Wait Recorded for Someone Offered an Appointment for Residential Treatment from their Care Plan Being Agreed* Year 2006-07 52+ weeks 2007-08 52+ weeks 2008-09 27-52 weeks 2009-10 27-52 weeks 2010-11 13-26 weeks Note: It is unknown how long these people waited for an assessment date prior to being offered an appointment for treatment and whether they actually entered treatment Source: Drug Treatment Waiting Times Information Framework, Information Services Division (ISD) of NHS National Services Scotland, What we know now since the introduction of the new Drug and Alcohol Treatment Waiting Times Database is as follows: Longest Wait Recorded between Referral Received and Treatment Starting Year 2011-12 9-12 weeks Source: Drug Treatment Waiting Times Information Framework, Information Services Division of NHS National Services Scotland.