Clinical Course of Alcohol Use Disorder Recovery - Project Summary/Abstract Alcohol use disorder (AUD) continues to be a widespread problem with an estimated 29% of all Americans ages 12 and up meeting DSM-5 criteria for diagnosis during their lifetime (13.9% within the past 12 months; Grant et al., 2015). Although abstinence remains as the primary outcome for many treatment programs, such definitions of “recovery” remain far too narrow. Recently, NIAAA disseminated a definition of recovery aimed at addressing limitations of past research, stimulating new research, and better operationalizing recovery (NIAAA, 2020). Specifically, NIAAA defines recovery as “a process through which an individual pursues both remission from AUD and cessation from heavy drinking.” They further go on to state that “an individual may be considered recovered if both remission from AUD and cessation from heavy drinking are achieved and maintained over time.” Although this new operational definition will help to organize the existing literature and provide guidance for future research, several questions remain. First, categorization of recovery as initial, early, sustained, and stable requires further research to establish whether such thresholds are meaningful in both clinical practice and research. Second, the utility of heavy drinking thresholds to define recovery remains questionable at best. Finally, the new definition does not provide a conceptual framework for which recovery is a “process” requiring continual monitoring for clinical markers (clinical change points) that may impact recovery status. The aim of the current application is to examine the utility and validity of this new definition within the context of a novel theoretical model of AUD recovery. The proposed study will recruit participants seeking treatment for AUD from the community. Participants will complete a structured clinical interview and provide information on their current alcohol use and related behaviors. All participants will receive 12 weeks of AUD psychotherapy and complete brief assessments at the end of each treatment session and biweekly during the first 12-months post treatment. In addition, participants will complete in-person interviews at 3-month and 6- month intervals post-treatment for the duration of the study (for up to 24-54 months post treatment depending on time of enrollment). Findings from the proposed research have the potential to increase understanding of the dynamic nature of recovery and thereby improve clinical decision-making and generate future research. Specifically, our goal is to address the question of “Are the constructs of relapse, recurrence remission, or recovery useful heuristics for clinical practice and research, and if so, how?” Identification of the processes important for each type of change in clinical course may help in designing adaptive treatments that capitalize on our current knowledge of the treatment literature. For example, people may need to use different strategies (e.g., weighing pros/cons, substituting new behaviors) for different phases of recovery. To our knowledge, this application is the first to test NIAAA’s new definition and the dynamic nature of recovery, as well as cognitive, behavioral, and affective processes hypothesized to be important for initiating versus maintaining change.