We are requesting the approval of the Census Disclosure Review Board (DRB) for the release of the SIPP Synthetic Beta (SSB) v6.0, produced by the Survey Improvement Research Branch (SIRB) of the Census Bureaus Social, Economic, and Housing Statistics Division. This data product is an update to the previously released SSB v5.1. In this memo we provide a brief review of the creation of the SSB a...