Like many independent schools, Harvard-Westlake has undertaken a number of significant policy evaluations around diversity, equity, inclusion, and belonging. While those projects reviewed almost all aspects of school operations, Harvard-Westlake Summer was not explicitly included. To ensure that the summer operation conformed with the schoolwide DEIB vision, Harvard-Westlake Summer performed its own DEI audit. This session will begin by exploring the relationship between the DEIB goals for the auxiliary program and those of the rest of the school. The specific goals of the Harvard-Westlake Summer DEI audit, the process undertaken to complete the audit, and the results obtained will be shared. While the framework was specifically designed for a summer program, the session will explore how the framework could be applied to other auxiliary operations. Participants will leave with concrete steps that can be used to evaluate the DEIB goals of their own auxiliary programs.