This paper examines the post-treatment support practices, attitudes and preferences of outpatient alcohol and other drug (AOD) treatment staff as well as perceived barriers to implementing a post-treatment support service in an outpatient AOD treatment context. Data were collected via semi-structured interview and group discussion (n = 23). Findings suggest that post-treatment support was rarely provided by participating AOD treatment staff or their respective services. However, there was widespread support for implementing such services, and it was generally believed that implementation would be most successful if: multiple post-treatment support options were made available; if one or more of these options were based on the maintenance of an established client/clinician relationship; and if one of the options involved proactive (service-led) telephone support. A number of barriers to possible implementation were identified, although none were considered insurmountable.