This study examined work engagement and its role in mediating the relationship between organizational support of evidence-based practice (integrating research evidence to inform professional practice) and educational growth and perceived professional expertise. Participants included 78 currently employed counselors, graduates of a master's program in mental health counseling located in an urban northeastern university. Results revealed that work engagement significantly mediates the relationship between organizational support of evidence-based practice and educational growth and perceived professional expertise. Implications for counseling practice and recommendations for future research are discussed.Keywords: professional expertise, counselors, evidence-based practice, professional development, work engagementAlthough ongoing efforts to maintain and improve clinical competence are intrinsic to ethical practice for counselors (Jennings, Sovereign, Bottorff, Musseil, & Vye, 2005), clinical does not appear to guarantee additional skill acquisition among counselors (Goodman & Amatea, 1994; Skovholt & Jennings, 2005). Notably, a meta-analysis conducted by Spengler et al. (2009) revealed that level of education, training and had a small effect on clinical judgment (d = .12). Skovholt and Jennings (2005) concluded that experience alone is not enough to ensure professional growth and increased professional expertise in counseling practice (p. 15).Because years of only minimally inform professional expertise (defined as the ability to accurately diagnose and implement treatment plans that sensitively incorporate the contexts in which clients are embedded [Meier, 1999]), it is important to isolate both individual and organizational factors that improve professional expertise over time. Individual factors identified in the counseling literature include (a) the importance of self-reflection (Neufeldt, Kamo, & Nelson, 1996), (b) exploration of unexamined assumptions about human nature (Auger, 2004), (c) empathy (McLeod, 1999; Pope & Kline, 1999), (d) self-awareness (Richards, Campenni, & Muse-Burke, 2010), (e) mindfulness (Campbell & Christopher, 2012) and (f) cultural competence (Goh, 2005). Organizational factors (defined as organizational systems and processes that are in place to support counselor professional growth linked to organizational and client outcomes) also have been identified (Aarons & Sawitzky, 2006a; Bultsma, 2012, Goh, 2005; Perera-Diltz & Mason, 2012; Truscott et al, 2012). The range of studies, however, has been limited in scope, and research has tended to focus on administrative practices associated with staff turnover, morale, efficiency and productivity (Aarons & Sawitzky, 2006a).This research focused on how individual counselors and organizations providing counseling services can promote the continuing development and refinement of professional expertise among practicing counselors. Specifically, we focused on individual work engagement and organizational factors-that is, organizational support of evidence-based practice (EBP) and educational growth, and their relationships to perceived counselor professional expertise. Counselor use of EBP involves engaging in critical analysis of professional practice and integrating research evidence to inform interventions (Carey & Dimmitt, 2008). We propose that organizational support of EBP and educational growth are important job resources (Bakker & Demerouti, 2008), and that work engagement mediates the relationship between these resources and perceived counselor professional expertise. First, we present a review of the literature related to organizational support of EBP and work engagement, with a specific focus on linking individual and organizational factors to perceived professional expertise.Evidence-Based PracticeEfforts put forth by the American Counseling Association (Morkides, 2009) and the American Counseling Association Practice Research Network (Bradley, Sexton, & Smith, 2005) have revealed that evidence-based interventions are critical to the optimal functioning of counselors. …