Person-environment (PE) fit refers to the compatibility between ideal aspects and experienced aspects of people's external environment (Edwards, 1991;Kristof, 1996). 1 Typically, when fit exists, employees report more favorable attitudes, experience greater well-being, and perform more effectively (Hoffman and Woehr, 2006; KristofBrown et al., 2005;Verquer, Beehr, and Wagner, 2003). Much of the attention in the PE fit literature has revolved around how fit is conceptualized (e.g., supplementary versus complementary fit) and measured (e.g., direct versus indirect measures; Billsberry et al., 2005;Edwards et al., 2006;Muchinsky and Monahan, 1987). Although this research has advanced our understanding of the phenomenon of PE fit, additional theory is needed to better understand why the extent to which workers fit with their environment predicts their attitudes, behavior, and well-being. Employees are motivated to attain a sufficient level of fit and they regulate their cognition and behavior in order to do so (Latham and Pinder, 2005). Despite this motivation to attain fit, there have been relatively few attempts to integrate the concept of PE fit with contemporary theories of self-regulation (for exceptions, see Edwards, 1992, andFrench et al., 1982).