The SAR group will be provided with the same information pamphlet as the MSO group. In addition, following assessment, SAR participants with "probable dependence" on one or more substances (based on ASSIST score ≥ 27) will also be provided a referral to treatment, consisting of a positive recommendation to seek treatment and a standardized list of available treatment options. Participants who request a referral will also receive one, regardless of ASSIST score. Referrals will be made to CTN-affiliated CTPs as well as other community programs in the normal clinical referral networks of the participating EDs.