A new research model of Perceived Organizational Support (POS) was proposed and tested. This model proposed that moral reasoning would moderate the relationships between six justice constructs and POS. The six justice constructs were distributive justice for self, coworkers, and employees in general as well as procedural justice for self, coworkers, and employees in general. The model was tested using two studies. Study 1 consisted of 284 students at a large southeastern university, while Study 2 was comprised of 215 employees from multiple organizations. The hypothesized relationships of the model were tested using hierarchical moderated regression analysis. Overall, while the results were consistent with most prior research, there was no support for the moderating role of moral reasoning that was proposed. The findings and implications of both Study 1 and 2 are discussed. Directions for future research are also suggested.